Category Archives: Psychological disorders

To see or not to see: A brief look at hallucinations in virtual reality applications

As a teenager I was fascinated with LSD purely as a consequence of my love of The Beatles and its alleged association with songs such as ‘Lucy in the Sky with Diamonds‘ (I say ‘alleged’ because all Beatle fanatics know that this song got its’ title from a drawing by John Lennon’s son Julian and that lyrically the song was inspired by the writings of Lewis Carroll, the creator of Alice in Wonderland [AIW], a book which gave its’ name to AIW Syndrome that I examined in a couple of previous blogs).

When I first started teaching my ‘Addictive Behaviours’ module back in 1990, almost all my lectures concentrated on drug addictions (as opposed to behavioural addictions which now take centre stage in my teaching), and it was my session on hallucinogenic drugs (also known as psychedelic drugs) that was always the most fun to teach and the topic that students appeared to be most engaged in. Like many of my students, I have always been interested in altered states of consciousness both in my own research into addiction and the topic more generally.


The reason why I mention all these things as that I did a media interview on the hallucinogenic effects of virtual reality products. The interview was based on comments by Microsoft researcher Mar Gonzalez Franco, who said that virtual reality will soon replace the need for hallucinogenic drugs. More specifically, she was quoted as saying:

“By 2027 we will have ubiquitous virtual reality systems that will provide such rich multi-sensorial experiences that will be capable of producing hallucinations which blend or alter perceived reality. Using this technology, humans will retrain, recalibrate and improve their perceptual systems…In contrast to current virtual reality systems that only stimulate visual and auditory senses, in the future the experience will expand to other sensory modalities including tactile with haptic devices“.

Claims that VR products have the potential to induce hallucinogenic experiences have already started appearing in the media. A recent story in the Daily Mail reported that there was already a VR app (SelfSound) that claimed it can reproduce the effects of hallucinogenic drugs and plays on the neurological phenomena known as synaesthesia and that a “program is used to promote mediation through creating abstract reality [and] plays face-melting music with synesthetic DMT-style visualizations uniquely generated in response to [a person’s] voice”. (DMT is an abbreviation for dimethyltryptamine, a powerful hallucinogenic drug).

Over the last seven years, I have published a series of studies with Dr. Angelica Ortiz de Gotari (some of them listed in the ‘Further reading’ section below) showing that hallucinations are common among video gamers in our working examining Game Transfer Phenomena (GTP). Therefore, it’s no surprise that VR games can do the same thing. We have reported that visual and auditory hallucinations are commonly experiences by regular videogame players.

For instance, one of our studies published in the International Journal of Human-Computer Interaction found that some video gamers experience altered visual perceptions after playing (e.g., distorted versions of real world surroundings). Others saw video game images and misinterpreted real life objects after they had stopped playing. Gamers reported seeing video game menus popping up in front their eyes when they were in a conversation, or saw coloured images and ‘heads up’ displays when driving on the motorway. Our study analysed 656 experiences from 483 gamers collected in 54 online video game forums. Visual illusions can easily trick the brain, and staring at visual stimuli can cause ‘after-images’ or ‘ghost images’ among videogame players. We found that GTP were triggered by associations between video game experiences, and objects and activities in real life contexts. Our findings also raised questions about the effects of the exposure to specific visual effects used in video games.

We also reported that in some playing experiences, video game images appeared without awareness and control of the gamers, and in some cases, the images were uncomfortable, especially when gamers could not sleep or concentrate on something else. These experiences also resulted in irrational thoughts such as gamers questioning their own mental health, getting embarrassed or performing impulsive behaviours in social contexts. However, other gamers clearly thought that these experiences were fun and some even tried to induce them.

Visual experiences identified in GTP show us the interplay of physiological, perceptual and cognitive mechanisms and the potential of learning with video games even without awareness. It also invites us to reflect about the effects of prolonged exposure to synthetic stimuli and the challenges that the human mind affront due to the technological advances that are still to come. However, because we collected our data for most of our published studies from online video game forums, the psychological profile of the gamers in our studies are unknown. However, different gamers reported similar experiences in the same games. This highlights the relevance of the video games’ structural characteristics but gamers’ habits also appear to be crucial. Some gamers may be more susceptible than others to experience GTP. The effects of these experiences appear to be short-lived, but some gamers experience them recurrently. It goes without saying (but I’ll say it anyway) that more research is needed to understand the cognitive and psychological implications of GTP. Most of these GTP experiences are viewed positively but a small minority of players find them detrimental.

Whether such hallucinations – either in typical videogames or VR videogames – can be induced on demand is debatable. Very few players in our own research said they were able to induce hallucinations. At present, we simply don’t know what the long-term effects of VR gaming will be and that goes for VR-induced gaming hallucinations too. It may be the case that VR induced hallucinogenic states will be ‘safer’ than ones induced by psychedelic drugs as there is no ingestion of a psychoactive substance, but that’s just speculation on my part.

Dr. Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Cawley, C. (2016). Virtual Reality could make you hallucinate; Don’t freak out. Tech Co, December 15. Located at:

Hamill, J. (2016). Windows of perception: Microsoft says virtual reality will soon have same mind-bending effects as LSD. The Sun, December 7. Located at:

Liberatore, S. (2016). That’s trippy! Watch the VR app that claims to be able to reproduce the effects of a hallucinogenic drug. Daily Mail, May 4, Located at:

Ortiz de Gortari, A.B. & Griffiths, M.D. (2012). An introduction to Game Transfer Phenomena in video game playing. In J. Gackenbach (Ed.), Video Game Play and Consciousness (pp.223-250). Hauppauge, NY: Nova Science.

Ortiz de Gortari, A.B. & Griffiths, M.D. (2014). Altered visual perception in Game Transfer Phenomena: An empirical self-report study. International Journal of Human-Computer Interaction, 30, 95-105.

Ortiz de Gortari, A.B. & Griffiths, M.D. (2014). Auditory experiences in Game Transfer Phenomena: An empirical self-report study. International Journal of Cyber Behavior, Psychology and Learning, 4(1), 59-75.

Ortiz de Gortari, A.B. & Griffiths, M.D. (2014). Automatic mental processes, automatic actions and behaviours in Game Transfer Phenomena: An empirical self-report study using online forum data. International Journal of Mental Health and Addiction, 12, 432-452.

Ortiz de Gortari, A.B. & Griffiths, M.D. (2015). Game Transfer Phenomena and its associated factors: An exploratory empirical online survey study. Computers in Human Behavior, 51, 195-202.

Ortiz de Gortari, A.B. & Griffiths, M.D. (2015). Auditory experiences in Game Transfer Phenomena: An empirical self-report study. In: Gamification: Concepts, Methodologies, Tools, and Applications (pp.1329-1345). Pennsylvania: IGI Global.

Ortiz de Gortari, A.B. & Griffiths, M.D. (2016). Prevalence and characteristics of Game Transfer Phenomena: A descriptive survey study. International Journal of Human-Computer Interaction, 32, 470-480.

Ortiz de Gortari, A.B., Pontes, H.M. & Griffiths, M.D. (2015). The Game Transfer Phenomena Scale: An instrument for investigating the non-volitional effects of video game playing. Cyberpsychology, Behavior and Social Networking, 18, 588-594.

Rothman, P. (2014). Virtual Reality and Drugs – Yes, you should get high before using VR. H Plus Magazine, July 31. Located at:

Screenage rampage: What should parents know about videogame playing for children?

Last month, the World Health Organisation (WHO) announced that it was planning to include ‘Gaming Disorder’ (GD) in the latest edition of the International Classification of Diseases. This followed the American Psychiatric Association’s decision to include ‘Internet Gaming Disorder’ in the latest edition of the Diagnostic and Statistical Manual of Mental Disorders in 2013. According to the WHO, an individual with GD is a person who lets playing video games “take precedence over other life interests and daily activities,” resulting in “negative consequences” such as “significant impairment in personal, family, social, educational, occupational or other important areas of functioning.”

I have been researching videogame addiction for nearly 30 years, and during that time I have received many letters, emails, and telephone calls from parents wanting advice concerning videogames. Typical examples include ‘Is my child playing too much?’, ‘Will playing videogames spoil my pupils’ education?’, ‘Are videogames bad for children’s health? and ‘How do I know if a child is spending too long playing videogames?’ To answer these and other questions in a simple and helpful way, I have written this article as a way of disseminating this information quickly and easily.


To begin with parents should begin by finding out what videogames their children are actually playing! Parents might find that some of them contain material that they would prefer them not to be having exposure to. If they have objections to the content of the games they should facilitate discussion with children about this, and if appropriate, have a few rules. A few aims with children should be:

  • To help them choose suitable games which are still fun
  • To talk with them about the content of the games so that they understand the difference between make-believe and reality
  • To discourage solitary game playing
  • To guard against obsessive playing
  • To follow recommendations on the possible risks outlined by videogame manufacturers
  • To ensure that they have plenty of other activities to pursue in their free time besides the playing of videogames

Parents need to remember that in the right context videogames can be educational (helping children to think and learn more quickly), can help raise a child’s self-esteem, and can increase the speed of their reaction times. Parents can also use videogames as a starting point for other activities like painting, drawing, acting or storytelling. All of these things will help a child at school. It needs to be remembered that videogame playing is just one of many activities that a child can do alongside sporting activities, school clubs, reading and watching the television. These can all contribute to a balanced recreational diet.

The most asked question a parent wants answering is ‘How much videogame playing is too much? To help answer this question I devised the following checklist. It is designed to check if a child’s videogame playing is getting out of hand. Ask these simple questions. Does your child:

  • Play videogames every day?
  • Often play videogames for long periods (e.g., 3 to 6 hours at a time)?
  • Play videogames for excitement or ‘buzz’ or as a way of forgetting about other things in their life?
  • Get restless, irritable, and moody if they can’t play videogames?
  • Sacrifice social and sporting activities to play videogames?
  • Play videogames instead of doing their homework?
  • Try to cut down the amount of videogame playing but can’t?

If the answer is ‘yes’ to more than four of these questions, then your child may be playing too much. But what can you do if your child is playing videogames too much?

  • First of all, check the content of the games. Try and give children games that are educational rather than the violent ones. Parents usually have control over what their child watches on television – videogames should not be any different.
  • Secondly, try to encourage video game playing in groups rather than as a solitary activity. This will lead to children talking and working together.
  • Thirdly, set time limits on children’s playing time. Tell them that they can play for a couple of hours after they have done their homework or their chores – not before.
  • Fourthly, parents should always get their children to follow the recommendations by the videogame manufacturers (e.g., sit at least two feet from the screen, play in a well-lit room, never have the screen at maximum brightness, and never play videogames when feeling tired).

I have spent many years examining both the possible dangers and the potential benefits of videogame playing. Evidence suggests that in the right context videogames can have positive health and educational benefits to a large range of different sub-groups. What is also clear from the case studies displaying the more negative consequences of playing is that they all involved children who were excessive users of videogames. From prevalence studies in this area, there is little evidence of serious acute adverse effects on health from moderate play. In fact, in some of my studies, I found that moderate videogame players were more likely to have friends, do homework, and engage in sporting activities, than those who played no videogames at all.

For excessive videogame players, adverse effects are likely to be relatively minor, and temporary, resolving spontaneously with decreased frequency of play, or to affect only a small subgroup of players. Excessive players are the most at-risk from developing health problems although more research is needed. If care is taken in the design, and if they are put into the right context, videogames have the potential to be used as training aids in classrooms and therapeutic settings, and to provide skills in psychomotor coordination, and in simulations of real life events (e.g., training recruits for the armed forces).

Every week I receive emails from parents claiming that their sons are addicted to playing online games or that their daughters are addicted to social media. When I ask them why they think this is the case, they almost all reply “because they spend most of their leisure time in front of a screen.” This is simply a case of parents pathologising their children’s behaviour because they think what they are doing is “a waste of time.” I always ask parents the same three things in relation to their child’s screen use. Does it affect their schoolwork? Does it affect their physical education? Does it affect their peer development and interaction? Usually parents say that none of these things are affected so if that is the case, there is little to worry about when it comes to screen time. Parents also have to bear in mind that this is how today’s children live their lives. Parents need to realise that excessive screen time doesn’t always have negative consequences and that the content and context of their child’s screen use is more important than the amount of screen time.

(N.B. This article is an extended version of an article that was originally published by Parent Zone)

Dr. Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Griffiths, M.D. (2003).  Videogames: Advice for teachers and parents. Education and Health, 21, 48-49.

Griffiths, M.D. (2009). Online computer gaming: Advice for parents and teachers. Education and Health, 27, 3-6.

Griffiths, M.D., Kuss, D.J. & King, D.L. (2012). Video game addiction: Past, present and future. Current Psychiatry Reviews, 8, 308-318.

Griffiths, M.D., Kuss, D.J. & Pontes, H. (2016). A brief overview of Internet Gaming Disorder and its treatment. Australian Clinical Psychologist, 2(1), 20108.

Griffiths, M.D. & Meredith, A. (2009). Videogame addiction and treatment. Journal of Contemporary Psychotherapy, 39(4), 47-53.

King, D.L., Delfabbro, P.H. & Griffiths, M.D. (2012). Clinical interventions for technology-based problems: Excessive Internet and video game use. Journal of Cognitive Psychotherapy: An International Quarterly, 26, 43-56.

King, D.L., Delfabbro, P.H., Griffiths, M.D. & Gradisar, M. (2012). Cognitive-behavioural approaches to outpatient treatment of Internet addiction in children and adolescents. Journal of Clinical Psychology, 68, 1185-1195.

Király, O., Nagygyörgy, K., Griffiths, M.D. & Demetrovics, Z. (2014). Problematic online gaming. In K. Rosenberg & L. Feder (Eds.), Behavioral Addictions: Criteria, Evidence and Treatment (pp.61-95). New York: Elsevier.

Kuss, D.J. & Griffiths, M.D. (2012). Online gaming addiction in adolescence: A literature review of empirical research. Journal of Behavioral Addictions, 1, 3-22.

Kuss, D.J. & Griffiths, M.D. (2012). Internet gaming addiction: A systematic review. International Journal of Mental Health and Addiction, 10, 278-296.

Levy settle: A statutory gambling levy is needed to help treat gambling addicts

At the most recent Labour Party conference, the Party’s deputy leader Tom Watson said that if they formed the next Government they would introduce legislation to force gambling operators to pay a levy to fund research and NHS treatment to help problem gamblers deal with their addiction. This is something which I wholeheartedly support and is also something that I have been calling for myself for over a decade

The most recent statistics on gambling participation by the Gambling Commission in August 2017 reported that 63% of the British population had gambled in the last year and that the prevalence rate of problem gambling among those 16 years and over was 0.6%-0.7%. While this is relatively low, this still equates to approximately 360,000 adult problem gamblers and is of serious concern.


At present the gambling industry voluntarily donates money to an independent charitable trust (GambleAware) and most of this money funds gambling treatment (with the remaining monies being used to fund education and research). In the 12 months prior to March 2017, the gambling industry had donated £8 million, an amount still 20% below the £10 million a year I recommended in a report I wrote for the British Medical Association a number of years ago.

A statutory levy of 1% on all gambling profits made by the British gambling industry would raise considerably more money for gambling education, treatment and research than the £8 million voluntarily donated last year and is the main reason why I am in favour of it. Gambling has not been traditionally viewed as a public health matter. However, I believe that gambling addiction is a health issue as much as a social issue because there are many health consequences for those addicted to gambling including depression, insomnia, intestinal disorders, migraine, and other stress related disorders. This is in addition to other personal issues such as problems with personal relationships (including divorce), absenteeism from work, neglect of family, and bankruptcy.

There are also many recommendations that I would make in addition to a statutory levy. These include:

  • Brief screening for gambling problems among participants in alcohol and drug treatment facilities, mental health centres and outpatient clinics, as well as probation services and prisons should be routine.
  • The need for education and training in the diagnosis and effective treatment of gambling problems must be addressed within GP training. Furthermore, GPs should screen for problem gambling in the same way that they do for other consumptive behaviours such as cigarette smoking and alcohol drinking. At the very least, GPs should know where they can refer their patients with gambling problems to.
  • Research into the efficacy of various approaches to the treatment of gambling addiction in the UK needs to be undertaken and should be funded by GambleAware.
  • Treatment for problem gambling should be provided under the NHS (either as standalone services or alongside drug and alcohol addiction services) and funded either by gambling-derived revenue (i.e., a ‘polluter pays’ model).
  • Given the associations between problem gambling, crime, and other psychological disorders (including other addictions), brief screening should be routine for gambling problems should be carried out in alcohol and drug treatment facilities, mental health centres and outpatient clinics, as well as probation services and prisons.
  • Education and prevention programmes should be targeted at adolescents along with other potentially addictive and harmful behaviours (e.g., smoking, drinking, and drug taking) within the school curriculum.

As I have tried to demonstrate, problem gambling is very much a health issue that needs to be taken seriously by all in the medical profession. General practitioners routinely ask patients about smoking and drinking, but gambling is something that is not generally discussed. Problem gambling may be perceived as a grey area in the field of health. If the main aim of practitioners is to ensure the health of their patients, then an awareness of gambling and the issues surrounding it should be an important part of basic knowledge in the training of those working in the health field.

Gambling is not an issue that will go away. Opportunities to gamble and access to gambling have increased due to the fact that anyone with Wi-Fi access and a smartphone or tablet can gamble from wherever they are. While problem gambling can never be totally eliminated, the Government must have robust gambling policies in place so that potential harm is minimized for the millions of people that gamble. For the small minority of individuals who develop gambling problems, there must be treatment resources in place that are affordable and easily accessible.

(N.B. This is a longer version of an article that was originally published in The Conversation)

Dr. Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Auer, M. & Griffiths, M.D. (2013). Behavioral tracking tools, regulation and corporate social responsibility in online gambling. Gaming Law Review and Economics, 17, 579-583.

Griffiths, M.D. (2003). Problem gambling. The Psychologist: Bulletin of the British Psychological Society, 16, 582-584.

Griffiths, M.D. (2004). Betting your life on it: Problem gambling has clear health related consequences. British Medical Journal, 329, 1055-1056.

Griffiths, M.D. (2006). The lost gamblers: Problem gambling. Journal of the Royal Statistical Society, 3(1), 13-15.

Griffiths, M.D. (2007). Gambling Addiction and its Treatment Within the NHS. London: British Medical Association

Griffiths, M.D. (2017). Gambling regulation from a psychologist’s perspective: Thoughts and recommendations. In Gebhardt, I. (Ed.), Glücksspiel – Ökonomie, Recht, Sucht (Gambling – Economy, Law, Addiction) (Second Edition) (pp. 938-944). Berlin: De Gruyter.

Meyer, G., Hayer, T. & Griffiths, M.D. (2009). Problem Gambling in Europe: Challenges, Prevention, and Interventions. New York: Springer.

Stammer time: A brief look at psellismophilia

Over the Christmas holiday I received a notification from Google to say that my work on sexual paraphilias had been cited in an article entitled ‘Forget feet, meet the fetishists turned on by insects, stuttering and stairs’ on the Shoofee website. The article was a brief overview of seven paraphilias and fetishes, and many of those listed referred readers to articles on my personal blog. Of the seven listed, I had already written articles on six of them but I had never done one on the seventh – psellismophilia.

According to Dr. Anil Aggrawal in his 2009 book Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices, psellismophilia is a paraphilia that involves becoming sexually aroused by stuttering. Psellismophilia is another paraphilia whose name has been derived as being the opposite of a specific phobia (i.e., psellismophobia, an irrational and persistent fear of stuttering). According to the Massive Phobia website, the root word ‘psellismo’ is the Greek word for ‘stammering’. The Phobia Source website notes stuttering as:

“A speech disorder wherein sounds, syllables or words are repeated or prolonged and this disrupts the normal flow of speech. This affects a person’s quality of life because people find it difficult to communicate with others and people might have also a hard time understanding people who stutter or might find it even annoying. Stuttering can be a source of ridicule and humiliation and this can lead to a full blown phobia called psellismophobia…We must remember that stuttering is not equivalent to lack of intelligence. In fact, most people who stutter are extremely intelligent and is said to be that their brains process their thoughts too fast and their speech can’t cope up with their thoughts”.


As with any human behaviour that I know little about, I first did a search on Google Scholar and found that no article had ever been written on the topic. I then did a simple search on Google and again found that no articles had ever been done on the behaviour. However, there were plenty of articles that mentioned it in passing including articles in The Huffington Post (‘46 sexual fetishes you’ve never heard of’), Crave Online (‘15 bizarre sexual fetishes you’ve probably never heard of’), The Buzz (‘15 bizarre/disgusting sexual fetishes you’ve probably never heard of!’), The Thrillist (‘20 bizarre sexual fetishes you never knew existed’), The Sex Health Mag (‘The 10 strange sexual fetishes you’ve probably never heard of’), The Hook Mag (‘20 of the most f**ked up sexual fetishes you’d prefer not to know about’), and The Inked Mag (‘50 shades of weird. 49 of the most bizarre sex fetishes!’). Not one of these articles had anything more than a one-line definition (typically describing the condition as an abnormal affection and/or love for stuttering). The article in Shoofee, did offer a little more in the way of explanation:

“Stuttering affects one percent of the world’s population and many sufferers find themselves the butt of jokes. But if they were to come across a psellismophiliac they could find that their speech is an instant aphrodisiac, for this is a fetish which involves arousal to stuttering. Natalie, a 22-year-old psellismophiliac, explained her condition on an online psychology forum. ‘I feel like I can’t date regularly because I won’t be sexually interested in anyone who doesn’t have a stammer,’ she wrote. Natalie added that when she mentioned it to boyfriends they tried to pretend to stutter but she said it failed to arouse her like the real thing”.

Given the complete lack of information on whether there are individuals who are sexually aroused by stuttering I began trawling various online forums and began to find individuals who confessed online that stuttering was something they found sexually arousing (or claim to know those who are). Obviously I have no way of knowing the veracity of the claims made, but most appeared to be genuine to me. Here are some extracts:

  • Extract 1: “I am a girl who finds listening to a guy stutter and struggle extremely sexy… no there is very little on the internet about it, guess there’s not many of us out there, but you’re not alone” (Lickerish, female, heterosexual).
  • Extract 2: “I’m a guy who gets turned on by listening to a girl stutter, and I’ve never been able to figure out why…There’s hardly anything on the internet about it, other than this thread and a few random ‘stuttering is sexy’ one-liners on other sites…But yeah, there are a few of us out there, and it’s interesting to know that it’s not limited to just one gender” (Wireless Mike, male, heterosexual).
  • Extract 3: “I’ve had this fetish for years (I’m 31 now), but it’s been getting stronger and stronger. I’m a gay guy attracted to other guys who stutter. I’ve met a couple of guys locally and a couple more over Skype. We are still friends with [three] of them – we just drifted apart with the other one since time zones don’t work to our advantage. But I find myself wishing I had more friends who stutter to talk to. It’s both a sexual thing and a non-sexual thing… in some ways I prefer chatting with guys who stutter than fluent guys…Does anyone else feel the same? It’s frustrating that I have to work so hard to convince others I’m not crazy” (Jay, male, gay).
  • Extract 4: “I had a chick ask me to stutter on her nether regions once. It’s about the closest I’ve seen of a “stuttering fetish” (Zachary, male, heterosexual).
  • Extract 5: “I have [a stutter fetish]. I’m female and I like men, but I have this fetish for males and females. I’ve never written this before. Certainly never said it” (Spector, female, bisexual).
  • Extract 6: “I don’t have personal experience with people fetishizing stuttering, but I’ve seen it, particularly in smutty fanfiction with ‘nervous’ submissive characters” (Croagunk, male, sexuality unknown).
  • Extract 7: “I once dated a girl who confessed during our brief relationship that she thought my stutter was ‘cute’. I’m pretty sure she was into ‘different’ kinds of guys. She would always bring it up and stare at my mouth. It was like a fetish. It was like she had a thing for disabled guys! I broke up with her not because I didn’t like her, just because it freaked me out. Made me feel really uncomfortable” (priateproducer, male, heterosexual).
  • Extract 8: The stutter can be sexy. The thing of gasping for air; moving tongues; flailing lips; breathing. These are sexual motions, these are movements of the mouth, the delicate lips, the waving of the soft tongue. To stutter is to wave the soft flesh of the face in rapid succession…Thinking about stuttering as an intimate act, akin to being naked, may change its constructed meaning and turn it into a moment of closeness with our community” (Zach, male, sexuality unknown)
  • Extract 9: “I am a guy who likes guys, and consider myself to have a stuttering fetish…It’s true that there isn’t much [online about] this, but I’ve spoken to 4 or 5 other guys (through the net and on the phone/skype occasionally) who also share this – so I’m not the only one!…I can’t quite explain it, but I really like guys who stutter. Let me say that it has to be more than just that to like a guy, but it helps!…For me, the more severe the stutter the more attractive it is. I’ve spoken to a quite a few guys who stutter and I’ve always been open about this. Some just find it strange or think I’m kidding, but most are really open and relieved to find someone who doesn’t have an issue with it. For me it’s not as simple as just a ‘fetish’, I’ve read a lot about it and can understand a lot about it. I’ve also talked to a couple of guys who like to pretend (even though they’re completely fluent otherwise) and I find that interesting too” (Jay, male, gay).
  • Extract 10: “I have a stuttering fetish…I look for videos of stuttering online to watch. The more severe the stutter, the more struggle and secondary characteristics, the better. I stuttered pretty badly as a child, and occasionally still do…It’s nice to know I’m not the only one” (eglorae, gender and sexuality unknown).
  • Extract 11: “I’m new on this forum so I was just only browsing and saw the stuttering topic and it immediately caught my attention so…yes I guess I have a soft spot for guys who stutter. It’s not quite a fetish, but I find it really cute and sexy. I used to [have] a crush on a guy when I was like 14 years old and he was a stutterer, oh his speaking was so hot!” (Alexandra, female, heterosexual).
  • Extract 12: “Wow, I thought I was the only one and that I was odd! I’m a guy who finds stuttering really sexy in women. No idea why…It’s just something I discovered that I like. I’d love to talk…with some girls who stutter but it seems very unlikely!” (emmanola, male, heterosexual).
  • Extract 13: “I have to tell you, that some of the guys I have met have found it an absolute turn on for them. During intimate moments my stuttering gets a lot worse which can send some guys crazy, although admittedly it is a very small number. I never thought it as being a fetish though, but maybe it is. I can’t say that anyone I have met has been actually looking for someone that stutters but rather looked at is a bonus when they found someone that did” (Kenny, male, gay).
  • Extract 14: “I stutter and it is a BIG turn-on for me. It’s nice to know that I’m not the only one. I would love to talk to another stutterer – especially one who thinks it’s a turn-on” (Stutteringdude, male, gay).

Based on these online self-confessions, a few things can be concluded. Obviously I have no idea about whether these are in any way representative of those individuals who like those that stutter, but if it is a genuine fetish or paraphilia (and some of these individuals claim it is something they like strongly or have a preference for rather than it being a fetish as such), the behaviour appears to prevalent in both men and women and not be associated with one particular sexual orientation as it was described by those both gay and straight. Very few appear to know where their fetish for stuttering originates although some describe memories from adolescence and being sexually aroused in the formative stages of sexual development. Most see the fetish as something that they have kept to themselves without ever having talked to others about it. Some appear to be glad that they ‘are not alone’ in having the fetish and find comfort in hearing others’ stories. Some individuals went as far to offer explanations for the fetish or what it’s not about.

  • Extract 15: ‪I think I know what attracts [people] to the stutter. I think it’s most likely the tonality of a stutter. They raise in pitch, repeat syllables that sometimes mirror those of an orgasm or basic sexual moaning. I honestly do think you might find something a bit erotic about how similarly a stutter can mimic that of sexual moan…even the facial expressions made” (aimoo182, gender and sexuality unknown).
  • Extract 16: “I’ve also read a bit about stuttering and can understand a lot more than your average guy. I’ve been asked if it’s a [domination] thing…it’s not. I’d happily dom or be dommed by a guy who stutters. Or just hold a nice conversation. It doesn’t matter” (Jay, male, gay).

My own view is that most fetishes and paraphilias appear to begin developing in early adolescence and that classical conditioning (i.e., associative pairing between sexual arousal and the non-sexual stimulus, in this case the stuttering) is an important part of the acquisition process. Little of what I found fits my opinion on this but that’s more because the individuals themselves have little insight to their own behaviour and how the fetish manifested itself. Whether psellismophilia ever becomes the focus of serious academic study remains to be seen but I doubt that it will unless any negative consequences arise from the behaviour (and I have come across nothing suggesting that the condition – if it genuinely exists – is any way detrimental).

Dr Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Aggrawal A. (2009). Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices. Boca Raton: CRC Press.

Gates, K. (2000). Deviant Desires: Incredibly Strange Sex. New York: RE/Search Publications.

Love, B. (1992). Encyclopedia of Unusual Sex Practices. Fort Lee, NJ: Barricade Books.

Blocking out the pain: Tetris, trauma, and Game Transfer Phenomena

Unwanted visual intrusions are characteristic of Post-Traumatic Stress Disorder (PTSD). According to Dr. Emily Holmes and her colleagues in a 2009 paper in the journal PLoS ONE, one innovative intervention for inhibiting unwanted intrusions is playing the Tetris videogame, described as a ‘cognitive vaccine’ in preventing intrusions after traumatic events. Playing Tetris consumes heavy visuospatial working memory resources that potentially compete with cognitive resources required for elaboration of visual imagery. Since Holmes and colleagues’ study, other studies have used Tetris to inhibit intrusive imagery including more studies by Holmes and her colleagues and others by Ella James’ research group, as well as some innovative studies using Tetris to reduce drug cravings by Jessica Storka-Brown and her colleagues (see ‘Further reading’ below). However, none of these studies assessed the role of videogame content after playing in relation to Game Transfer Phenomena (GTP), an area that we have carried out a lot of research into (see ‘Further reading’ below).


GTP research has investigated non-volitional experiences (e.g., altered sensorial perceptions and automatic mental processes/behaviours) mostly experienced after gaming. Gamers often report sensorial (visual/auditory) intrusions after playing (e.g., visual and auditory imagery, hallucinations). In a survey of 2,362 gamers that we published in a 2016 issue of the International Journal of Human-Computer Interaction, most (77%) had visualized images from a variety of videogames (including tile-puzzle games) with closed-eyes, and one-third (31%) had visualized images with open-eyes. Other studies have experimentally induced videogame-related visualizations at sleep onset (including studies by Stickgold and colleagues [2000], Wamsley and colleagues [2010], Kusse and colleagues [2012] – see ‘Further reading’).

James and colleagues’ 2015 study in the journal Psychological Science was the first to make explicit reference to GTP (referred to as the ‘Tetris effect’ [TE]). In 2012, we argued the TE term is misleading as it suggests repetition is the core of transfer effects. However, other factors are involved. Research concerning GTP makes the distinction between sensorial modalities facilitating non-volitional phenomena with videogame content that occur along the continuum from mild to severe. Moreover, the descriptive constructs of GTP are empirically based on our analysis of 3,500+ gamers and have been examined via confirmatory factor analysis demonstrating good reliability and validity.

James and her colleagues tested if playing Tetris offered a protective mechanism against re-experiencing traumatic events. Healthy participants (n=56) were randomly assigned to either playing Tetris for 11 minutes, or doing nothing before exposure to a 12-minute traumatic film. Image-base memories about the film were then registered in a one-week dairy. However, playing Tetris as a proactive interference task before watching the film did not show significant results. James and colleagues offered different explanations including: (i) duration of the task in relation to film length, (ii) temporal contingencies between the tasks, (iii) differences between the task types, (iv) videogame types used, and (v) reactivation of gameplay during the film for aided interference. In a commentary paper published in a 2016 issue of Frontiers in Psychology, we discussed these findings and some of its shortcomings in relation to GTP literature.

  • Duration of task in relation to film length: Playing Tetris for 11 minutes may not have been long enough to compete with the consolidation of memory of the 12-minute film. GTP are significantly more likely to occur when playing 3-6 hours. Our research reported only 4% of gamers reported GTP when playing sessions shorter than one-hour. Laboratory experiments have taken days of playing to induce game-related visualizations at sleep onset.
  • Temporal contingencies between gaming and film watching: The tasks were performed minutes apart from each other. GTP mostly occur soon after stopping playing but our research has found that gamers have also reported GTP days after playing. In most cases, duration of experience is very short (seconds/minutes) but in some cases hours or longer.
  • Differences between the tasks: Previous studies have demonstrated that similar tasks aid interference. However, watching a film is a passive activity while gaming is interactive requiring additional perceptual/motor skills. Therefore, it may be expected that gaming is more potent as interference task, particularly because inducing the subjective sense of presence in the virtual world may strengthen the interference.
  • Type of videogame used as interference task and emotional content of film: The unrealistic (geometric) Tetris content may have been overwritten by the film’s traumatic images. Visualization of stereotypical games induced at sleep onset are characterized by lack of emotion, assuming that the amygdala and the reward system are not involved. In GTP research, emotions in tile-matching puzzle-games are incomparable to emotions in realistic videogames.
  • Reactivation of gameplay during the film for aided interference: The use of cue reminders may have potential in reviving videogame content. In many cases, thoughts and altered perceptions are triggered by game-related cues. Selective attention toward game-related cues has been demonstrated in experiments. GTP have been reported in variety of videogame genres particularly those that have very realistic graphics and settings. Therefore, more realistic games may aid associations between real life stimuli and videogame content, and may be more effective in competing with memories of traumatic events.

In our Frontiers paper, we noted that playing Tetris is not only an effective visuospatial task (overloading working memory resources needed for imagery-formation while playing), but as demonstrated in our GTP studies, videogame content stays active after playing (e.g., mental imagery, sensory perceptions), and may offer additional benefits for managing unwanted intrusions. GTP may potentially strengthen effects of interference tasks but should be used cautiously, because videogame content not only targets unwanted intrusions, but also influences individual cognitions, perceptions, and behaviours in day-to-day contexts (e.g., attention bias, lack of task awareness, control inhibition failures). Moreover, our studies have shown distress and dysfunction have been reported with GTP.

Consequently, further research needs conducting to identify: (i) videogames that are most effective, (ii) playing duration, (iii) factors that reduce intervention efficacy and strategies to control them, and (iv) individuals that may benefit the most from such intervention. While using videogames as intervention tools for preventing unwanted imagery from traumatic experiences has potential, therapeutically it is still at an early stage.

  • (Please note: This blog was co-written with Dr. Angelica Ortiz de Gortari and is based on an article we published in Frontiers in Psychology: Ortiz de Gortari, A.B. & Griffiths, M.D. (2016). Playing the computer game Tetris prior to viewing traumatic film material and subsequent intrusive memories: Examining proactive interference. Frontiers in Psychology, 7, 260. doi: 10.3389/fpsyg.2016.00260)

Dr. Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Holmes, E. A., James, E. L., Kilford, E. J., & Deeprose, C. (2010). Key steps in developing a cognitive vaccine against traumatic flashbacks: Visuospatial Tetris versus Verbal Pub Quiz. PloS ONE, 5(11), e13706.

James, E. L., Bonsall, M. B., Hoppitt, L., Tunbridge, E. M., Geddes, J. R., Milton, A. L., & Holmes, E. A. (2015a). Computer game play reduces intrusive memories of experimental trauma via reconsolidation-update mechanisms. Psychological Science. doi: 10.1177/0956797615583071

James, E. L., Zhu, A. L., Tickle, H., Horsch, A., & Holmes, E. A. (2015b). Playing the computer game Tetris prior to viewing traumatic film material and subsequent intrusive memories: Examining proactive interference. Journal of Behavior Therapy and Experimental Psychiatry. doi: 10.1016/j.jbtep.2015.11.004

Kusse, C., Shaffii-Le Bourdiec, A., Schrouff, J., Matarazzo, L., & Maquet, P. (2012). Experience-dependent induction of hypnagogic images during daytime naps: A combined behavioural and EEG study. Journal of Sleep Research, 21(1), 10-20.

Ortiz de Gortari, A. B., Aronsson, K., & Griffiths, M. D. (2011). Game Transfer Phenomena in video game playing: A qualitative interview study. International Journal of Cyber Behavior, Psychology and Learning 1(3), 15-33.

Ortiz de Gortari, A. B., & Griffiths, M. D. (2012). An introduction to Game Transfer Phenomena in video game playing. In J. I. Gackenbach (Ed.), Video Game Play and Consciousness (pp. 223-250). Hauppauge, NY: Nova Publisher.

Ortiz de Gortari, A. B., & Griffiths, M. D. (2014a). Altered visual perception in Game Transfer Phenomena: An empirical self-report study. International Journal of Human-Computer Interaction, 30(2), 95-105.

Ortiz de Gortari, A. B., & Griffiths, M. D. (2014b). Auditory experiences in Game Transfer Phenomena: An empirical self-report study. International Journal of Cyber Behavior, Psychology and Learning 4(1), 59-75.

Ortiz de Gortari, A. B., & Griffiths, M. D. (2014c). Automatic mental processes, automatic actions and behaviours in Game Transfer Phenomena: An empirical self-report study using online forum data. International Journal of Mental Health and Addiction, 12(4), 1-21.

Ortiz de Gortari, A. B., & Griffiths, M. D. (2015a). Game Transfer Phenomena and its associated factors: An exploratory empirical online survey study. Computers in Human Behavior, 51, 195-202.

Ortiz de Gortari, A.B. & Griffiths, M.D. (2016). Prevalence and characteristics of Game Transfer Phenomena: A descriptive survey study. International Journal of Human-Computer Interaction, 32, 470-480.

Ortiz de Gortari, A.B., Oldfield, B. & Griffiths, M.D. (2016). An empirical examination of factors associated with Game Transfer Phenomena severity. Computers in Human Behavior, 64, 274-284.

Ortiz de Gortari, A. B., Pontes, H. M. & Griffiths, M. D.  (2015). The Game Transfer Phenomena Scale: An instrument for investigating the nonvolitional effects of video game playing. Cyberpsychology, Behavior, and Social Networking 10, 588-594

Skorka-Brown, J., Andrade, J., & May, J. (2014). Playing ‘Tetris’ reduces the strength, frequency and vividness of naturally occurring cravings. Appetite, 76 , 161-165.

Skorka-Brown, J., Andrade, J., Whalley, B., & May, J. (2015). Playing Tetris decreases drug and other cravings in real world settings. Addictive Behaviors, 51, 165-170.

Stickgold, R., Malia, A., Maguire, D., Roddenberry, D., & O’Connor, M. (2000). Replaying the Game: Hypnagogic images in normals and amnesics. Science, 290(5490), 350-353.

Wamsley, E. J., Perry, K., Djonlagic, I., Reaven, L. B., & Stickgold, R. (2010). Cognitive replay of visuomotor learning at sleep onset: Temporal dynamics and relationship to task performance. Sleep, 1(33), 59-68.


Learning, yearning, but not earning: A brief look at student gambling

Last week, the UK Gambling Commission put out a press release relating to student gambling. Having been in the university sector for as long as I have been researching gambling (i.e., 30 years), student gambling is an area that has always been close to my professional heart. I have published dozens of papers on youth gambling and student gambling over the last three decades (see ‘Further reading’ below for a few examples).

With my daughter leaving home to go to university this week there are lots I could potentially worry about and gambling isn’t necessarily my main concern where my daughter is concerned, but gambling is still of concern to me especially because a study I published back in 2012 with Luke Benson and Dr. Christine Norman (in the International Journal of Mental Health and Addiction) found that first year university students gambled more than final year students and were more susceptible to problem gambling compared to final year students.

Screen Shot 2017-09-25 at 20.20.25

The Gambling Commission have just published their own research into the topic. They hired Youth Sight who conducted 1,000 online interviews with undergraduate students in August 2017 (the students were part of an online panel recruited from applicants through Universities and Colleges Admission Service). The quotas chosen reflected the UK student population in terms of gender, course year and university group. Here are some of their key findings:

  • Two-thirds of students had gambled in the previous month
  • Over half of student gamblers (54%) engaged in gambling to make money
  • Two-fifths of students said they felt guilty after they had gambled
  • One in eight student gamblers had missed lectures due to gambling
  • One in four student gamblers (25%) had spent more money gambling than they could afford
  • One in 25 student gamblers (4%) were in debt because of their gambling
  • One in four students that had a gambling debt, had a debt of over £10,000

The Gambling Commission noted there were are number of limitations with the study. They specifically noted that gambling participation rates may have been higher than if the data had been collected using other methodologies (telephone, face-to-face interviews) due to the self-selecting nature of online surveys. However, online surveys were chosen due to students’ access to technology and the availability of a representative panel via this method. 

On the back of their survey, the Gambling Commission also provided their top ten tips to help students avoid getting into trouble with gambling. I have reproduced them here verbatim.

  • Ask yourself why you are gambling: Are you gambling to escape debt or as a way to make quick money? Think carefully about your motivations to gamble. Gambling shouldn’t be seen as the answer to improving your personal finances. If you have concerns about money, speak to a financial adviser or student support services.
  • Monitor how often you’re gambling online: Websites must give you access to historic account activity. This means you can see exactly when, how much and what you’ve been gambling on over time and make well-informed choices about what to do next.
  • Keep track of how much time you’ve spent gambling: With a reality check, you can set alerts to pop up on screen, which help you to monitor the time spent gambling either online or on gaming machines in a betting shop.
  • Limit how much you can spend: If you’re concerned about how much money you’re gambling, you can set a limit on how much you spend across individual gambling products online. You can also set a limit on how much you spend on gaming machines in a betting shop.
  • Give yourself a timeout: During a timeout, you can block yourself from gambling online for a set amount of time, of up to 6 weeks, and even bar yourself from gambling during a specific time of day.
  • Need a longer break? Self-exclude from gambling firms for a minimum of 6 months: If you think you are spending too much time or money gambling – whether online or in gambling premises – you can ask to be self-excluded. This is when you ask the company to stop you from gambling with them for a period of time. The exclusion will last for a minimum of least six months. Self-exclusion can be used if you think you have a problem with gambling and want help to stop. [The Gambling Commission] are also working with industry representatives to develop a national online self-exclusion scheme.
  • Read the terms and conditions: Did you know almost 80% of gamblers haven’t read the terms and conditions on the websites they are gambling on? By taking the time to read the T&Cs, you can ensure you understand exactly what you are gambling on, and what restrictions are attached to promotions and bonus offers (such as a minimum spend level before the bonus is paid) – this will help you make an informed decision.
  • Make sure the website you’re gambling with is licensed: Make sure you’re gambling with a Gambling Commission licensed business. This means you’ll be protected by gambling and consumer protection rules in Great Britain. Licensed gambling businesses must display that they are licensed and provide a link to our licence register where you can see what type of activities they are allowed to offer and also if we have taken any regulatory action against them.
  • Check how your money is protected: Any gambling business that holds customer funds must explain in their T&Cs how customer funds are protected if the business goes bust – this should help you decide who you want to gamble with.
  • Feel it’s getting too much? Talk to someone: There are a number of gambling support groups available if you feel your gambling is getting out of control or too much. More information about the signs of problem gambling can be found on the Gambleaware and Gamcare websites [You can call the National Gambling Helpline on Freephone 0808 8020 133]. They also provide general information about gambling, including how to gamble safely and where to get help if you or someone you know has problems with their gambling.

Dr. Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Benson, L., Norman, C. & Griffiths, M.D. (2012). The role of impulsivity, sensation seeking, coping, and year of study in student gambling: A pilot study. International Journal of Mental Health and Addiction, 10, 461-473.

Canale, N., Griffiths, M.D., Vieno, A., Siciliano, V. & Molinaro, S. (2016). Impact of internet gambling on problem gambling among adolescents in Italy: Findings from a large-scale nationally representative survey. Computers in Human Behavior, 57, 99-106.

Canale, N., Vieno, A., Lenzi, M., Griffiths, M.D., Borraccino, A., Lazzeri, G., Lemma, P., Scacchi, L., Santinello, M. (2017). Income inequality and adolescent gambling severity: Findings from a large-scale Italian representative survey. Frontiers in Psychology, 8, 1318. doi: 10.3389/fpsyg.2017.01318

Gambling Commision (2017). Commission raises awareness of potential risks for students who gamble. September 12. Located at:

Griffiths, M.D. (1995). Adolescent Gambling. London: Routledge.

Griffiths, M.D. (2002). Adolescent gambling: What should teachers and parents know? Education and Health, 20, 31-35.

Griffiths, M.D. (2002). Gambling and Gaming Addictions in Adolescence. Leicester: British Psychological Society/Blackwells.

Griffiths, M.D. (2008). Adolescent gambling in Great Britain. Education Today: Quarterly Journal of the College of Teachers. 58(1), 7-11.

Griffiths, M.D. (2013). Adolescent gambling via social networking sites: A brief overview. Education and Health, 31, 84-87.

Griffiths, M.D. (2015). Adolescent gambling and gambling-type games on social networking sites: Issues, concerns, and recommendations. Aloma: Revista de Psicologia, Ciències de l’Educació i de l’Esport, 33(2), 31-37.

Griffiths, M.D. & Calado, F. (2017). Adolescent gambling. Reference Module in Neuroscience and Biobehavioral Psychology (pp. 1-12). Oxford: Elsevier.

Griffiths, M.D. & Linsey, A. (2006). Adolescent gambling: Still a cause for concern? Education and Health, 24, 9-11.

Griffiths, M.D. & Parke, J. (2010). Adolescent gambling on the Internet: A review. International Journal of Adolescent Medicine and Health, 22, 59-75.

Serial delights: Killing as an addiction

A couple of days ago I watched the 2007 US psychological thriller Mr. Brooks. The film is about a celebrated businessman (Mr. Earl Brooks played by Kevin Costner) who also happens to be serial killer (known as the ‘thumbprint killer’). The reason I mention all this is that the explanation given in the film by Earl for the serial killing is that it was an addiction. A number of times in the film he is seem attending Alcoholics Anonymous and quoting from the 12-step recovery program to help him ‘beat his addiction’. With the help of the AA Fellowship, he had managed not to kill anyone for two years but at the start of the film, Earl’s psychological alter-ego (‘Marshall’ played by William Hurt) manages to coerce Earl into killing once again. I won’t spoil the plot for people who have not seen the film but the underlying theme that serial killing is an addiction that Earl is constantly fighting against, is embedded in an implicit narrative that addiction somehow ‘explains’ his behaviour and that he is not really responsible for it. This is not a view I hold myself as all addicts have to take some responsibility for their behaviour.


The idea of serial killing being conceptualized as an addiction in popular culture is not new. For instance, Brian Masters book about British serial killer Dennis Nilsen (who killed at least 12 young men and was also a necrophile) was entitled Killing for Company: The Story of a Man Addicted to Murder, and Mikaela Sitford’s book about Harold Shipman, the British GP (aka ‘Dr. Death’) who killed over 200 people, was entitled Addicted to Murder: The True Story of Dr. Harold Shipman.

One of the things that I have always argued throughout my career, is that someone cannot become addicted to an activity or a substance unless they are constantly being rewarded (either by continual positive and/or negative reinforcement). Given that serial killing is a discontinuous activity (i.e., it happens relatively infrequently rather than every hour or day) how could killing be an addiction? One answer is that the act of killing is part of the wider behaviour in that the preoccupation with killing can also include the re-enacting of past kills and the keeping of ‘trophies’ from the victims (which I overviewed in a previous blog). As the author of the book Freud, Profiled: Serial Killer noted:

“The serial killer is most often described as a kind of addict. Murder is his addiction, the thrill achieved in murder his ‘kick.’ This addiction requires a maintenance ‘fix.’ At first, the experience is wonderfully exhilarating, later the fix is needed to just feel normal again. It is a hard habit to break, the hungering sensation to consume another life returns. Between murders, they often play back video or sound recordings or look at photos made of their previous murders. This voyeurism provides a surrogate death-meal until their next feeding”.

In Eric Hickey’s 2010 book Serial Murderers and Their Victims, Dr. Hickey makes reference to an unpublished 1990 monograph by Dr. Victor Cline who outlined a four-factor addiction syndrome in relation to sexual serial killers who (so-called ‘lust murderers’ that I also examined in a previous blog). More specifically:

“The offender first experiences ‘addiction’ similar to the physiological/psychological addiction to drugs, which then generates stress in his or her everyday activities. The person then enters a stage of ‘escalation’, in which the appetite for more deviant, bizarre, and explicit sexual material is fostered. Third, the person gradually becomes ‘desensitized’ to that which was once revolting and taboo-breaking. Finally, the person begins to ‘act out’ the things that he or she has seen”.

This four-stage model is arguably applicable to serial killing more generally. It also appears to be backed up by one of the most notorious serial killers, Ted Bundy. In an interview with psychologist Dr. James Dobson (found in Harold Schecter’s 2003 book The Serial Killer Files: The Who, What, Where, How, and Why of the World’s Most Terrifying Murderers), Bundy claimed:

“Once you become addicted to [pornography], and I look at this as a kind of addiction, you look for more potent, more explicit, more graphic kinds of material. Like an addiction, you keep craving something which is harder and gives you a greater sense of excitement, until you reach the point where the pornography only goes so far – that jumping-off point where you begin to think maybe actually doing it will give you that which is just beyond reading about it and looking at it”.

Dr. Hickey claims that such urges to kill are fuelled by fantasies that have become well-developed and killers to vicariously gain control of other individual. He also believes that fantasies for lust killers are far greater than an escape, and becomes the focal point of all behaviour. He concludes by saying that “even though the killer is able to maintain contact with reality, the world of fantasy becomes as addictive as an escape into drugs”. In the book The Serial Killer Files, Harold Schechter notes that:

“For homicidal psychopaths, lust-killing often becomes an addiction. Like heroin users, they not only become dependent on the thrilling sensation – the rush – of torture, rape, and murder; they come to require ever greater and more frequent fixes. After a while, merely stabbing a co-ed to death every few months isn’t enough. They have to kill every few weeks, then every few days. And to achieve the highest pitch of arousal, they have to torture the victim before putting her to death. This kind of escalation can easily lead to the killer’s own destruction. Like a junkie who ODs in his urgent quest to satisfy his cravings, serial killers are often undone by their increasingly unbridled sadism, which drives them to such reckless extremes that they are finally caught. Monsters tend to be sadists, deriving sexual gratification from imposing pain on others. Their secret perversions, at first sporadic, often trap them in a pattern as the intervals between indulgences become briefer: it is a pattern whose repetitions develop into a hysterical crescendo, as if from one outrage to another the monster were seeking as a climax his own annihilation”.

Schecter uses the ‘addiction’ explanation for serial killing throughout his writings even for serial killers from the past including American nurse Jane Toppan (the ‘Angel of Death’) who confessed to 33 murders in 1901 and died in 1938 (“she became addicted to murder”), cannibalistic child serial killers Gilles Garnier (died in 1573) and Peter Stubbe (died 1589) (“both became addicted to murder and cannibalism, both preferred to prey upon children”), and Lydia Sherman (died 1878) who killed 8 children including six of her own (“confirmed predator, addicted to cruelty and death”).

In a recent 2012 paper on mental disorders in serial killers in the Iranian Journal of Medical Law, Dr. N. Mehra and A.S. Pirouz quoted the literary academic Akira Lippit who argued that in films, the “completion of each serial murder lays the foundation for the next act which in turn precipitates future acts, leaving the serial subject always wanting more, always hungry, addicted”. They then go on to conclude that:

“Once a killer has tasted the success of a kill, and is not apprehended, it will ultimately mean he will strike again. He put it simply, that once something good has happened, something that made the killer feel good, and powerful, and then they will not hesitate to try it again. The first attempt may leave them with a feeling of fear but at the same time, it is like an addictive drug. Some killers revisit the crime scene or take trophies, such as jewelry or body parts, or video tape the scenario so as to be able to re-live the actual feeling of power at a later date”.

Although I haven’t done an extensive review of the literature, I do think it’s possible – even on the slimmest of empirical bases presented here – to conceptualize serial killing as a potential behavioural addiction for some individuals. However, it will always depend upon how addiction is defined in the first place.

Dr. Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Aggrawal A. (2009). Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices. Boca Raton: CRC Press.

Brophy, J. (1967). The Meaning of Murder. London: Crowell.

Hickey, E.W. (2010). Serial Murderers and Their Victims (Fifth Edition). Pacific Grove, CA: Brooks/Cole.

Lippit, A.M. (1996). The infinite series: Fathers, cannibals, chemists. Criticism, Summer, 1-18.

Masters, B. (1986). Killing for Company: The Story of a Man Addicted to Murder. New York: Stein and Day.

Mehra, N., & Pirouz, A. S. (2012). A study on mental disorder in serial killers. Iranian Journal of Medical Law, 1(1), 38-51.

Miller, E. (2014). Freud, Profiled: Serial Killer. San Diego: New Directions Publishing.

Schecter, H. (2003). The Serial Killer Files: The Who, What, Where, How, and Why of the World’s Most Terrifying Murderers. New York: Ballantine Books

Sitford, M. (2000). Addicted to Murder: The True Story of Dr. Harold Shipman. London: Virgin Publishing.

Taylor, T. (2014). Is serial killing an addiction? IOL, April 9. Located at:

Art in the right place: Cosey Fanni Tutti’s ‘Art Sex Music’

Five years ago I wrote a blog about one of my favourite bands, Throbbing Gristle (TG; Yorkshire slang for a penile erection). In that article, I noted that TG were arguably one of “the most extreme bands of all time” and “highly confrontational”. They were also the pioneers of ‘industrial music’ and in terms of their ‘songs’, no topic was seen as taboo or off-limits. In short, they explored the dark and obsessive side of the human condition. Their ‘music’ featured highly provocative and disturbing imagery including hard-core pornography, sexual manipulation, school bullying, ultra-violence, sado-masochism, masturbation, ejaculation, castration, cannibalism, Nazism, burns victims, suicide, and serial killers (Myra Hindley and Ian Brady).

I mention all this because I have just spent the last few days reading the autobiography (‘Art Sex Music‘) of Cosey Fanni Tutti (born Christine Newbie), one of the four founding members of TG. It was a fascinating (and in places a harrowing) read. As someone who is a record-collecting completist and having amassed almost everything that TG ever recorded, I found Cosey’s book gripping and read the last 350 pages (out of 500) in a single eight-hour sitting into the small hours of Sunday morning earlier today.


TG grew out of the ‘performance art’ group COUM Transmissions in the mid-1970s comprising Genesis P-Orridge (‘Gen’, born Neil Megson in 1950) and Cosey. At the time, Cosey and Gen were a ‘couple’ (although after reading Cosey’s book, it was an unconventional relationship to say the least). TG officially formed in 1975 when Chris Carter (born 1953) and Peter ‘Sleazy’ Christopherson (1955-2010). Conservative MP Sir Nicholas Fairburn famously called the group “wreckers of civilisation” (which eventually became the title of their 1999 biography by Simon Ford).

As I noted in my previous article, TG are – psychologically – one of the most interesting groups I have ever come across and Cosey’s book pulled no punches. To some extent, Cosey’s book attempted to put the record straight in response to Simon Ford’s book which was arguably a more Gen-oriented account of TG. Anyone reading Cosey’s book will know within a few pages who she sees as the villain of the TG story. Gen is portrayed as an egomaniacal tyrant who manipulated her. Furthermore, she was psychologically and physically abused by Gen throughout their long relationship in the 1970s. Thankfully, Cosey fell in love with fellow band member Chris Carter and he is still the “heartbeat” of the relationship and to who her book is dedicated.

Like many of my favourite groups (The Beatles, The Smiths, The Velvet Underground, Depeche Mode), TG were (in Gestaltian terms) more than the sum of their parts and all four members were critical in them becoming a cult phenomenon. The story of their break up in the early 1980s and their reformation years later had many parallels with that of the Velvet Underground’s split and reformation – particularly the similarities between Gen and Lou Reed who both believed they were leaders of “their” band and who both walked out during their second incarnations.

Cosey is clearly a woman of many talents and after reading her book I would describe her as an artist (and not just a ‘performance artist’), musician (or maybe ‘anti-musician in the Brian Eno sense of the word), writer, and lecturer, as well as former pornographic actress, model, and stripper. It is perhaps her vivid descriptions of her life in the porn industry and as a stripper that (in addition to her accounts of physical and psychological abuse by Gen) were the most difficult to read. For someone as intelligent as Cosey (after leaving school with few academic qualifications but eventually gaining a first-class degree via the Open University), I wasn’t overly convinced by her arguments that her time working in the porn industry both as a model and actress was little more than an art project that she engaged in on her own terms. But that was Cosey’s justification and I have no right to challenge her on it.

What I found even more interesting was how she little connection between her ‘pornographic’ acting and modelling work and her time as a stripper (the latter she did purely for money and to help make ends meet during the 1980s). Her work as a porn model and actress was covert, private, seemingly enjoyable, and done behind closed doors without knowing who the paying end-users were seeing her naked. Her work as a stripper was overt, public, not so enjoyable, and played out on stage directly in front of those paying to see her naked. Two very different types of work and two very different psychologies (at least in the way that Cosey described it).

Obviously both jobs involved getting naked but for Cosey, that appeared to be the only similarity. She never ever had sex for money with any of the clientele that paid to see her strip yet she willingly made money for sex within the porn industry. For Cosey, there was a moral sexual code that she worked within, and that sex as a stripper was a complete no-no. The relationship with Gen was (as I said above) ‘unconventional’ and Gen often urged her and wanted her to have sex with other men (and although she never mentioned it in her book, I could speculate that Gen had some kind of ‘cuckold fetish’ that I examined in a previous blog as well as some kind of voyeur). There were a number of times in the book when Cosey appeared to see herself as some kind of magnet for unwanted attention (particularly exhibitionists – so-called ‘flashers’ – who would non-consensually expose their genitalia in front of Cosey from a young age through to adulthood). Other parts of the book describe emotionally painful experiences (and not just those caused by Gen) including both her parents disowning her and a heartfelt account of a miscarriage (and the hospital that kept her foetus without her knowledge or consent). There are other sections in the book that some readers may find troubling including her menstruation art projects (something that I perhaps should have mentioned in my blog  on artists who use their bodily fluids for artistic purposes).

Cosey’s book is a real ‘warts and all’ account of her life including her many health problems, many of which surprisingly matched my own (arrhythmic heart condition, herniated spinal discs, repeated breaking of feet across the lifespan). Another unexpected connection was that her son with Chris Carter (Nick) studied (and almost died of peritonitis) as an undergraduate studying at art at Nottingham University or Nottingham Trent University. I say ‘or’ because at one stage in the book it says that Nick studied at Nottingham University and in another extract it says they were proud parents attending his final degree art show at Nottingham Trent University. I hope it was the latter.

Anyone reading the book would be interested in many of the psychological topics that make an appearance in the book including alcoholism, depression, claustrophobia, egomania, and suicide to name just a few. In previous blogs I’ve looked at whether celebrities are more prone to some psychological conditions including addictions and egomania and the book provides some interesting case study evidence. As a psychologist and a TG fan I loved reading the book.

 Dr Mark Griffiths, Professor of Behavioural Addictions, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Cooper, D. (2012). Sypha presents … Music from the Death Factory: A Throbbing Gristle primer. Located at:

Fanni Tutti, C. (2017). Art Sex Music. Faber & Faber: London.

Ford, S. (1999). Wreckers of Civilization: The Story of Coum Transmissions and Throbbing Gristle. London: Black Dog Publishing.

Kirby, D. (2011). Transgressive representations: Satanic ritual abuse, Thee Temple ov Psychick Youth, and First Transmission. Literature and Aesthetics, 21, 134-149.

Kromhout, M. (2007). ‘The Impossible Real Transpires’ – The Concept of Noise in the Twentieth Century: a Kittlerian Analysis. Located at:

Reynolds, S. (2006). Rip It Up and Start Again: Postpunk, 1978–1984. New York: Penguin.

Sarig, R. (1998). The Secret History of Rock: The Most Influential Bands You’ve Never Heard Of. New York: Watson-Guptill Publications.

Walker, J.A. (2009). Cosey Fanni Tutti & Genesis P-Orridge in 1976: Media frenzy, Prostitution-style, Art Design Café, August 10. Located at:

Wells, S. (2007). A Throbbing Gristle primer. The Guardian, May 27. Located at:

Search of the poisoned mind? A brief look at ‘internet search dependence’

Despite being a controversial topic, research into a wide variety of online addictions has grown substantially over the last decade. My own research into online addictions has been wide ranging and has included online social networking, online sex addiction, online gaming addiction, online shopping addiction, and online gambling addiction. As early as the late 1990s/early 2000s, I constantly argued that when it came to online addictions, most of those displaying problematic behaviour had addictions on the internet rather than addictions to the internet (i.e., they were not addicted to the medium of the internet but addicted to applications and activities that could be engaged in via the internet).

A recent 2016 paper by Dr. Yifan Wang and colleagues in the journal Frontiers in Public Health described the development of the Questionnaire of Internet Search Dependence (QISD), a tool developed to assess individuals who may be displaying a dependence on using online search engines (such as Google and Baidu). The notion of individuals being addicted to using search engines is not new and was one of five types of internet addiction outlined in a 1999 typology in a paper in the Student British Medical Journal by Dr. Kimberley Young (and what she termed ‘information overload’ and referred to compulsive database searching). Although I criticized the typology on the grounds that most of the types of online addict were not actually internet addicts but were individuals using the medium of the internet to fuel other addictive behaviours (e.g., gambling, gaming, day trading, etc.), I did implicitly acknowledge that activities such as internet database searching could theoretically exist, even if I did not think it was a type of internet addiction.


As far as I am aware, the new scale developed by Wang et al. (2016) is the first to create and psychometrically evaluate an instrument to assess ‘internet search dependence’. As noted by the authors:

Subsequently, we compiled 16 items to represent psychological characteristics associated with Internet search dependence, based on the literature review and a follow-up interview with 50 randomly selected university students…We adopted the six criteria for behavioral addiction formulated by Griffiths (i.e., salience, mood modification, tolerance, withdrawal, conflict, and relapse) [Griffiths, 1999b]”.

Given the authors claimed they used an early version of my addiction components model (i.e., one from 1999 rather than my most recent 2005 formulation) to help inform item construction, I was obviously interested to see the scale’s formulated items. I have to admit that I had a lot of misgivings about the paper so I wrote a commentary on it that has just been published in the same journal (Frontiers in Public Health). More specifically, I noted in my paper that if an individual was genuinely addicted to searching online databases I would have expected to see all of my six criteria applied as follows:

  • Salience – This occurs when searching internet databases becomes the single most important activity in the person’s life and dominates their thinking (preoccupations and cognitive distortions), feelings (cravings) and behaviour (deterioration of socialized behaviour). For instance, even if the person is not actually searching the internet they will be constantly thinking about the next time that they will be (i.e., a total preoccupation with internet database searching).
  • Mood modification – This refers to the subjective experiences that people report as a consequence of internet database searching and can be seen as a coping strategy (i.e., they experience an arousing ‘buzz’ or a ‘high’ or paradoxically a tranquilizing feel of ‘escape’ or ‘numbing’ when searching internet databases).
  • Tolerance – This is the process whereby increasing amounts of time searching internet databases are required to achieve the former mood modifying effects. This basically means that for someone engaged in internet database searching, they gradually build up the amount of the time they spend searching internet databases every day.
  • Withdrawal symptoms – These are the unpleasant feeling states and/or physical effects (e.g., the shakes, moodiness, irritability, etc.), that occur when an individual is unable to search internet databases because they are ill, the internet is unavailable, or there is no Wi-Fi on holiday, etc.
  • Conflict – This refers to the conflicts between the person and those around them (interpersonal conflict), conflicts with other activities (social life, hobbies and interests) or from within the individual themselves (intra-psychic conflict and/or subjective feelings of loss of control) that are concerned with spending too much time searching internet databases.
  • Relapse – This is the tendency for repeated reversions to earlier patterns of excessive internet database searching to recur and for even the most extreme patterns typical of the height of excessive internet database searching to be quickly restored after periods of control.

Of the 12 QISD items constructed in the new scale, very few appeared to have anything to do with addiction and/or dependence but this is most likely due to the fact that the authors also used data collected from 50 participants to inform their items and not just the criteria in the addiction components model. However, relying heavily on input from their participants resulted in a number of key features in addiction/dependence not even being assessed (i.e., no assessment of salience, mood modification, conflict, relapse or tolerance). A couple of items may peripherally assess withdrawal symptoms (e.g., ‘I will be upset if I cannot find an answer to a complex question through Internet search’) but not in any way that is directly associated with addiction or dependence. This may be because the authors’ conceptualization of ‘dependence’ was more akin to ‘over-reliance’ rather than traditional definitions of dependence.

While the QISD may be psychometrically robust I argued that it appears to have little face validity and does not appear to assess problematic engagement in internet database searching (irrespective of how addiction or dependence is defined). Based on the addiction components model, I concluded my paper by creating my own scale to assess internet search dependence based directly on the addiction components model and which I argued would have much greater face validity than any item currently found in the QISD:

  • Internet database searching is the most important thing in my life.
  • Conflicts have arisen between me and my family and/or my partner about the amount of time I spend searching internet databases.
  • I engage in internet database searching as a way of changing my mood.
  • Over time I have increased the amount of internet database searching I do in a day.
  • If I am unable to engage in internet database searching I feel moody and irritable.
  • If I cut down the amount of internet database searching I do, and then start again, I always end up searching internet databases as often as I did before.

Dr. Mark Griffiths, Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Andreassen, C.S., Griffiths, M.D., Pallesen, S., Bilder, R.M., Torsheim, T. Aboujaoude, E.N. (2015). The Bergen Shopping Addiction Scale: Reliability and validity of a brief screening test. Frontiers in Psychology, 6:1374. doi: 10.3389/fpsyg.2015.01374.

Andreassen, C.S., Pallesen, S., Griffiths, M.D. (2017). The relationship between excessive online social networking, narcissism, and self-esteem: Findings from a large national survey. Addictive Behaviors, 64, 287-293.

Canale, N., Griffiths, M.D., Vieno, A., Siciliano, V. & Molinaro, S. (2016). Impact of internet gambling on problem gambling among adolescents in Italy: Findings from a large-scale nationally representative survey. Computers in Human Behavior, 57, 99-106.

Griffiths, M.D. (1998). Internet addiction: Does it really exist? In J. Gackenbach (Ed.), Psychology and the Internet: Intrapersonal, Interpersonal and Transpersonal Applications (pp. 61-75). New York: Academic Press.

Griffiths, M.D. (1999a). Internet addiction: Internet fuels other addictions. Student British Medical Journal, 7, 428-429.

Griffiths, M.D. (1999b). Internet addiction: Fact or fiction? The Psychologist: Bulletin of the British Psychological Society, 12, 246-250.

Griffiths, M.D. (2000). Internet addiction – Time to be taken seriously? Addiction Research, 8, 413-418.

Griffiths, M.D.  (2005). A ‘components’ model of addiction within a biopsychosocial framework. Journal of Substance Use, 10, 191-197.

Griffiths, M.D. (2012). Internet sex addiction: A review of empirical research. Addiction Research and Theory, 20, 111-124.

Griffiths, M.D. (2017). Commentary: Development and validation of a self-reported Questionnaire for Measuring Internet Search Dependence. Frontiers in Public Health, in press.

Griffiths, M.D., Kuss, D.J., Billieux J. & Pontes, H.M. (2016). The evolution of internet addiction: A global perspective. Addictive Behaviors, 53, 193–195.

Kuss, D. J., Griffiths, M. D., Karila, L. & Billieux, J. (2014). Internet addiction: A systematic review of epidemiological research for the last decade. Current Pharmaceutical Design, 20, 4026-4052.

Pontes, H. & Griffiths, M.D. (2015). Measuring DSM-5 Internet Gaming Disorder: Development and validation of a short psychometric scale. Computers in Human Behavior, 45, 137-143.

Wang, Y., Wu, L., Zhou, H., Xu, J. & Dong, G. (2016). Development and validation of a self-reported Questionnaire for Measuring Internet Search Dependence. Frontiers in Public Health, 4, 274. doi: 10.3389/fpubh.2016.00274

Young, K. S. (1999). Internet addiction: evaluation and treatment. Student British Medical Journal, 7, 351-352.