Category Archives: Compulsion
Nailed it: A brief look at onychophilia
In a previous blog, I looked at fingernail fetishism. Since writing that article, I’ve had a few individuals get in touch with me to say that they had very specific fingernail fetishes (such as a keen interest in very long nails). As the Kinkly website notes:
“A fingernail fetish can hinge on the nail color, texture, or length. If the fetish hinges on long nails, the fetish is sometimes referred to as onychophilia. For the fingernail fetishist the excitement is in the details, so nail art is given special attention”.
However, a really short article on ‘Lady Zombie’s World of Pain, Pleasure and Sin’ website also notes that onychophilia as a fingernail fetish but says it only refers to long nails (rather than nails more generally):
“Onychophilia is a fetish for extremely long nails (either real or fake) and/or painted fingernails. As with all fetishes, preferences vary! While some fetishists say, ‘The longer, the better,’ many others find them to be repulsive after a certain length”.
In my previous article I mentioned the the only specific case of fingernail fetishism that I found in the academic literature was a 1972 paper in the American Journal of Clinical Hypnosis, by Dr. Austin McSweeny who successfully treated a young male fingernail fetishist using hypnosis (although other sexologists such as Willem Stekel and Martin Kafka had mentioned such a fetish in passing). The same case study was cited by Dr. Jesse Baring in a blog on fingernail fetishism for Scientific American. He noted:
“He could [only] become sexually aroused and experience penile erection by seeing or fantasizing the fingernails of a woman as they were being bitten by her. Occasionally, the mere sight of a woman’s severely bitten fingernails would cause the patient to experience a spontaneous erection … When the patient experienced the proper fetish situation, he could masturbate to the point of ejaculation and experience gratification. This was his only means of expressing his sex drive…The psychotherapist’s request for the man to picture heterosexual intercourse or a vagina in his mind’s eye was enough to make him vomit”.

A 2019 article by Stephen Alexander (‘Onychophilia: Two types of nail fetish’) notes that fingernail fetishes are subsumed within ‘hand partialism’ (which can arguably include other fetishes I have examined including ‘handwear fetishism’ and ‘hands on hips fetishism’). Alexander asserts:
“I think that [fingernail fetishism] deserves critical attention in its own right. For the nails are not like any other part of the hand in that they are not composed of living material; they are made, rather, of a tough protective protein called alpha-keratin. D. H. Lawrence [in his 1963 essay ‘Why the novel matters’] describes his fingernails as ‘ten little weapons between me and an inanimate universe, they cross the mysterious Rubicon between me alive and things […] which are not alive, in my own sense’. Thus, I think there’s something in the claim that what nail (and hair) fetishists are ultimately aroused by is death; that they are, essentially, soft-core necrophiles. Having said that, the human nail as a keratin structure (known as an unguis) is closely related to the claws and hooves of other animals, so I suppose one could just as legitimately suggest a zoosexual origin to the love of fingernails”.
To support his claim that fingernail fetishists are “soft-core necrophiles”, Alexander noted that there had been a recorded case in the 1963 book Perverse Crimes in History: Evolving concepts of sadism, lust-murder, and necrophilia – from ancient to modern times (by R.E.L. Masters and Eduard Lee) where “an illicit lover derived pleasure from eating the nail trimmings of corpses (necro-onychophagia), thereby lending support to the theory that nail fetishism has a far darker and more ghoulish undercurrent”.
I also learned in Alexander’s article that there is another related paraphilia – amychophilia – which refers to sexual arousal from being scratched (or as Alexander puts it: “a love of the pain [fingernails] can inflict, when grown long and sharp”). I went and checked if amychophilia was in my ‘go to’ book on paraphilias (i.e., Dr. Anil Aggrawal’s Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices) – and it was. Dr. Aggrawal defines amychophilia as “deriving sexual pleasure from being scratched” which technically could mean sexual arousal from being scratched by things other than fingernails (e.g., toenails, back-scratcher) although scratching for most people will be synonymous with fingernail scratching. Given these definitions, I would argue that amychophilia is more akin to masochism than onychophilia because the root of amychophilia is in the feeling provided rather than what is doing the scratching. Alexander also quotes at length from Daphne du Maurier’s short story ‘The Little Photographer’ (from The Birds and Other Stories) and says that one scene in the book describes onychophilia in “fetishistic detail”. (I won’t reproduce it here but you can check it out in Alexander’s online article here).
Which brings me to the final article I came across on onychophilia by Liz Lapont on The Naked Advice website. She was writing in response to an email she had received:
“I’m a guy with a sexual fetish for long fingernails (not too long, usually the length that people get when they get their nails done). I beat off to pictures of nails and I have conversations with female friends about their nails. I wanted to know if you can make a video about this type of fetish. Seeing as not a lot of people talk about or show interest in this fetish, am I weird?”
Lapont replies that the fetish is both atypical and uncommon but not weird (“as in creepy and in need of psychiatric help”). My own take is that this is a non-normative sexual behaviour but agree with Lapont that there is nothing to worry about if the behaviour causes no problems in the individuals’ lives. She concludes by saying:
“Consult any list of the most common sexual fetishes and nails don’t crack the top 10. However it’s not unheard of, and toenails are often an associated turn-on for men with a fetish for feet. The clinical term for a fingernail fetish is onychophilia. For some, it’s the act of biting the fingernails that turn them on. For others, it might be their extreme length that is most erotic. Hands and nails play a big role even during the most vanilla sex in the world…So it’s not a stretch to see how for some men, fixating on fingernails would be IT for them”.
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.
Alexander, S. (2019). Onychophilia: Notes on two types of nail fetish. Torpedo The Ark. March 18. Located at: http://torpedotheark.blogspot.com/2019/03/onychophilia-notes-on-two-types-of-nail.html
Baring, J. (2013). Bite those nails, baby: A “quick” tale of fingernail Fetishism. Scientific American, August 14. Located at: https://blogs.scientificamerican.com/bering-in-mind/bite-those-nails-baby-a-e2809cquicke2809d-tale-of-fingernail-fetishism/
Baring, J. (2013). Perv: The Sexual Deviant In All Of Us. New York: Scientific American/Farrar, Strauss & Giroux.
Kafka, M. (2010). The DSM diagnostic criteria for fetishism. Archives of Sexual Behavior, 39, 357-362.
Kinkly (2020). Fingernails fetish. Located at: https://www.kinkly.com/definition/6664/fingernails-fetish
Lady Zombie (2011). Onychophilia – Long nail fetish. February 4. Located at: http://ladyzombienyc.blogspot.com/2011/02/onychophilia-long-nail-fetish.html
Lapont, L. (2017). Fingernails aren’t just great for back scratching. The Naked Advice, August 21. Located at: https://thenakedadvice.wordpress.com/2017/08/21/fingernails-arent-just-for-great-back-scratching/
Lawrence, D.H. (1985). Why the novel matters. In Steele, B. (Ed.), Study of Thomas Hardy and Other Essays. Cambridge: Cambridge University Press.
Masters, R.E., & Lea, E. (1963). Perverse crimes in history: Evolving concepts of sadism, lust-murder, and necrophilia, from ancient to modern times. New York: Julian Press.
McSweeny, A.J. (1972). Fetishism: Report of a case treated with hypnosis. American Journal of Clinical Hypnosis, 15, 139-143.
Scorolli, C., Ghirlanda, S., Enquist, M., Zattoni, S. & Jannini, E.A. (2007). Relative prevalence of different fetishes. International Journal of Impotence Research, 19, 432-437.
Stekel, W. (1952). Sexual Aberrations: The Phenomena of Fetishism in Relation to Sex (Vol. 1) (Trans., S. Parker). New York: Liveright Publishing Corporation.
Stekel, W. (1952). Sexual Aberrations: The Phenomena of Fetishism in Relation to Sex (Vol. 1) (Trans., S. Parker). New York: Liveright Publishing Corporation.
Reading by example: The books that inspired my career
This Christmas I managed to do a lot of book reading (most of it being David Bowie-related) and my favourite read was John O’Connell’s Bowie’s Books: The Hundred Literary Heroes Who Changed His Life (which If I’m nit-picking should actually be the 98 heroes because George Orwell and Anthony Burgess make two appearances each on the list), followed by Will Brooker’s Why Bowie Matters (a book I wish I had wrote because it was written by a Professor of Film and Cultural Studies and is a loose account of an academic spending a whole year trying to live like David Bowie as a piece of research). I also love lists so I thought I’d kick off the New Year with a list of the books that have shaped my academic life. This list was first published by The Psychologist (in 2018) but this blog may give my list a wider readership.

Excessive Appetites: A Psychological View of the Addictions (by Jim Orford)
One of the most influential books on my whole career is Jim Orford’s seminal book Excessive Appetites that explored many different behavioural addictions including gambling, sex, and eating (i.e., addictions that don’t involve the ingestion of psychoactive substances). Jim Orford’s books are always worth a read and he writes in an engaging style that I have always admired. It was by chance that I did my PhD at the University of Exeter (1987-1990) where Orford was working at the time and since 2005 we have published many co-authored papers together. While we can agree to disagree on some aspects of how and why people become addicted, Jim will continue to be remembered as a pioneer in the field of behavioural addiction.
The Psychology of Gambling (by Michael Walker)
If there’s one book I’d wish I had written myself, it is this one. I did my PhD on slot machine addiction in adolescence but this book was published shortly after I’d finished and beautifully summarises all the main theories and perspectives on gambling psychology. My PhD would have been a whole lot easier if this book had been published when I first started my research career! I got to know Michael quite well before his untimely death in December 2009 (and he was external PhD examiner to some of my PhD students), and one of my enduring images of him was walking around at gambling conferences with his book clutched in his hand. Some of my colleagues found that a little strange but if I’d have written a book that good I’d have it with me at such events all the time!
Motivational Interviewing: Preparing People for Change (by William R. Miller and Stephen Rollnick)
I reviewed this book for the British Journal of Clinical Psychology (BJCP) back in the early 1990s and concluded by saying that it is a book that should be read by all therapists because its content can be applied to nearly all clinical situations and not just to those individuals with addictive behaviour problems. Motivational interviewing (MI) borrows strategies from cognitive therapy, client-centred counselling, systems theory, and the social psychology of persuasion, and the underlying theme of the book is the issue of ambivalence, and how the therapist can use MI to resolve it and allow the client to build commitment and reach a decision to change. In my most recent research I’ve used the basic tenets of MI in designing personalised messages to give to gamblers while they are gambling online in real time. I’ve now come to the conclusion 25 years after writing my BJCP review that anyone interested in enabling behavioural change should apply the tenets in this book to their work.
The Myth of Addiction (by John B. Davies)
Even though this book was published back in 1992, I still tell my current students that this is a ‘must read’ book. Davies takes a much researched area of social psychology (i.e., attribution theory) and applies it to addiction. The basic message of the book is that people take drugs because they want to and not because they are physiologically addicted. The whole book is written in a non-technical manner and is highly readable and thought provoking. I often use Davies’ term ‘functional attribution’ from this book in my teaching and writings on sex addiction, and apply it to celebrities who use the excuse of ‘sex addiction’ to justify their infidelities.
Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices (by Anil Aggrawal)
Anyone that reads my blog will know that when it comes to the more bizarre side of sexual activity, my ‘go to’ book is Dr. Aggrawal’s book on unusual sexual practices. Others in the sexology field often look down their noses at this book but it is both enjoyable and informative and the kind of book that once you start reading you find it hard to put down again. A lot of academic books on sexual behaviour can be boring and/or impenetrable but this one is the polar opposite. The book also kick-started some of my own recently published research on sexual fetishes and paraphilias.
Small World (by David Lodge)
During my PhD, I remember watching the 1988 adaptation of David Lodge’s novel Small World. At the time, I had never heard of David Lodge but I went out and bought the book and was totally hooked. I then discovered that Small World was the second part of a ‘campus trilogy’ (preceded by Changing Places and followed by Nice Work). Since then I have bought every novel Lodge has ever published and he’s my favourite fiction writer (and I’ve bought and read some of his academic books on literary criticism). I love campus novels and through Lodge and devoured other university-based novels (including Malcolm Bradbury’s The History Man, Howard Jacobson’s Coming from Behind, and Ann Oakley’s The Men’s Room among my favourites).
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.
Brooker, W. (2019) Why Bowie Matters. London: William Collins.
Davies J. B. (1992). The Myth of Addiction. Reading: Harwood Academic Publishers.
Griffiths, M.D. (2018). My shelfie. The Psychologist: Bulletin of the British Psychological Society, 31, 70.
Lodge, D. (1984). Small World. London: Secker & Warburg.
Miller, W. R., & Rollnick, S. (1991). Motivational Interviewing: Preparing People to Change Addictive Behavior. New York: Guilford Press.
O’Connell, J. (2019). Bowie’s Books: The Hundred Literary Heroes Who Changed His Life. London: Bloomsbury.
Orford, J. (2001). Excessive Appetites: A Psychological View of the Addictions. Chichester: Wiley.
“I ink, therefore I am”: A brief look at ‘tattoo addiction’
“When I first told people back in 2016 that I was getting my first tattoo, the most common response I got from those who were already inked themselves was ‘You’re going to get addicted to getting tattoos’. I found this notion a little ridiculous – I was nervous enough just getting a small one on my ankle. I couldn’t imagine getting hooked on something that was not only expensive, but painful and permanent. Fast forward to 2019, and I’ve since gotten two more tattoos, each one progressively larger and more detailed, and I’m already planning my fourth, fifth, sixth, etc. As I was warned, I have indeed gotten hooked. For me, it’s both because I love how it makes me feel about my body, and because I’ve gotten to discover a new form of expression in my mid-30s. According to a 2018 report from Statista, roughly 46 percent of Americans have at least one tattoo, and 30 percent of these people have two or three –19 percent have up to four or five. Clearly, other people love getting inked just as much as I do. But while tattoos can be fun to have, are they actually addictive?
This opening quote is by Amy Semigran, a journalist who interviewed me earlier this year for an article she was writing on addictions to tattoos for the online magazine Mic (‘Are tattoos really addictive? There’s a reason you keep coming back for more’). Regular readers of my blog will be aware that I’ve written various articles on the psychology of tattoos over the years including articles on stigmatophilia (sexual arousal from a partner who is marked or scarred in some way, which can also include body tattoos), the use of extreme tattooing in films, a look at the TV programme ‘My Tattoo Addiction’, and an article on whether having tattoos makes women more sexually attractive.
In my interview, I told Semigran that in order for a person’s behaviour to be deemed an addiction, it needs to meet my six specific criteria: salience (where tattooing becomes the most important thing in a person’s life), mood modification (e.g., the euphoric feelings that accompany tattooing), tolerance (the gradual build-up of tattooing with the individual spending more and more time engaged in tattooing), withdrawal symptoms (negative psychological and/or physical consequences as a result of not being able to get tattooed such as extreme moodiness or irritability), conflict (tattooing compromising other areas of the individual’s life such as personal relationships and education/occupation), and relapse (returning to tattooing after a period of abstinence). Therefore, I told Semigran that tattooing does not meet my criteria for addiction. I also added that while many behaviours can become impulsive, addiction relies on constant rewards or reinforcement. Alcoholics, gambling addicts, or drug addicts feed their habits with frequent rewarding experiences (at least in the short-term) but even the most heavily tattooed people are not engaging in the behaviour regularly.

However, it is feasible that tattooing could be a behaviour that results in constant preoccupation (e.g., constantly thinking about getting the next tattoo, looking at tattoo designs, reading tattooing magazines, talking with other heavily tattooed individuals and sharing experiences, working as a tattooist, etc.). However, constantly being preoccupied by tattooing is (in itself) not a problem, unless of course it starts to cause serious conflict with other day-to-day activities. Semigran also interviewed Dr. Daniel Selling (a psychologist at Williamsburg Therapy Group in New York) for her article. He was quoted as saying:
“The word addiction in the context of tattoos is misused…while you can’t have a tattoo addiction, per se, it can be a dependence where you feel some elements of need and withdrawal…and perhaps spend too much time or money getting work…Being tattooed can also lead to an adrenaline rush of sorts. It’s the body tolerating annoyance and pain coupled with excitement and change”.
I agree that some people can spend too much time or money or spend money they don’t have on getting tattoos, but this is not addiction (and I would also argue that it is not dependence either). For many people, getting tattoos might be more of a passion than a problem, and there is nothing wrong with being passionate about what you do. I am passionate about work and some people describe me as being addicted to work or of being a ‘workaholic’ but given there are almost no negative consequences of me working hard and loving my job, it certainly can’t be viewed as an addiction.
As Semigran pointed out in her article, for many people, their passion and interest in tattooing is something that enhances their lives rather than interferes with it (this is exactly the same as my assertion – published in a 2005 issue of the Journal of Substance Use) that healthy excessive enthusiasms add to life whereas addictions take away from it. Semigran interviewed Lisa Orth, a Los Angeles-based tattoo artist Lisa Orth who has around 100 tattoos). She said:
“It’s an incredible feeling to be able to permanently customize yourself with artwork. [The] feeling of self-expression can be an empowering experience…It’s one of the main reasons [my] clients come back again and again. Tattooing can be a way of engaging with, and taking possession of, one’s body in an active way…[It] can allow people to define themselves visually in a way that forces the observer to see a person as they most authentically see themselves. That’s a big draw (so to speak) for those who repeatedly get inked…Getting tattooed is one of the remaining rituals in our culture that are physical, mental and emotional challenges, where you come out transformed on the other side”.
Again, this explanation has nothing to do with addiction and everything to do with self-identity and passion. Many addiction psychologists, would also add that if he behaviour causes harm or injury to the individual, it may also be a sign or symptom of possible addiction. However, Semigran quoted American psychologist, Dr. Tracy Alderman from an article she wrote for Psychology Today examining the extent to which tattooing and body piercings can be classed as self-harm.
“[E]njoying a rush is different than participating in self-harm. Since tattooing is a needle penetrating skin, that can potentially feed someone’s desire to feel pain or change their appearance due to unhappiness with themselves…Once in a while there will be cases in which piercing and/or tattoos do fit the definition of self-injury. But overwhelmingly,self-injury is a distinct behavior, in definition, method and purpose, from tattooing and piercing”.
I read Dr. Alderman’s article and her views mirror my own when it comes to the psychology of tattooing:
“[A] main issue separating self-injurious acts from tattoos and piercings is that of pride. Most people who get tattooed and/or pierced are proud of their new decorations. They want to show others their ink, their studs, their plugs. They want to tell the story of the pain, the fear, the experience. In contrast, those who hurt themselves generally don’t tell anyone about it. Self-injurers go to great lengths to cover and disguise their wounds and scars. Self-injurers are not proud of their new decorations”.
Semigran also quoted Dr. Suzanne Phillips who recently wrote an article for PsychCentral entitled ‘Tattoos after trauma-do they have healing potential’. Dr. Phillips notes:
“[A tattoo being used] to register a traumatic event is a powerful re-doing…It starts at the body’s barrier of protection, the skin, and uses it as a canvas to bear witness, express, release and unlock the viscerally felt impact of trauma”.
There’s no doubt that tattooing has become part of mainstream culture over the past two decades and there are a number of scholars who claim in the scientific literature that getting tattoos can be potentially addictive (such as Dr. Ivan Sosin; Dr. Allyna Murray and Dr. Tanya Tompkins; see ‘Further Reading’ below) but based on my own addiction criteria I remain to be convinced. However, whenever I think about the psychology of tattooing, I am always reminded of the saying: “Tattoos are like potato chips … you can’t have just one”.
Dr. Mark Griffiths, Distinguished Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK
Further reading
Alderman, T. (2009). Tattoos and piercings: Self-injury? Psychology Today, December 10. Located at: https://www.psychologytoday.com/nz/blog/the-scarred-soul/200912/tattoos-and-piercings-self-injury?amp
Griffiths, M.D. (1996). Behavioural addictions: An issue for everybody? Journal of Workplace Learning, 8(3), 19-25.
Griffiths, M.D. (2005). A ‘components’ model of addiction within a biopsychosocial framework. Journal of Substance Use, 10, 191-197.
Kovacsik, R., Griffiths, M.D., Pontes, H., Soós, I., de la Vega, R., Ruíz-Barquín, R., Demetrovics, Z., & Szabo, A. (2019). The role of passion in exercise addiction, exercise volume, and exercise intensity in long-term exercisers. International Journal of Mental Health and Addiction, https://doi.org/10.1007/s11469-018-9880-1
Murray, A. M., & Tompkins, T. L. (2013). Tattoos as a behavioral addiction. Science and Social Sciences, Submission 26. Located at: https://digitalcommons.linfield.edu/studsymp_sci/2013/all/26
Phillips, S. (2019). Tattoos after trauma-do they have healing potential? PsychCentral, March 27. Located at: https://blogs.psychcentral.com/healing-together/2012/12/tattoos-after-trauma-do-they-have-healing-potential/
Semigran, A. (2019). Are tattoos really addictive? There’s a reason you keep coming back for more. Mic, July 3. Located at: https://www.mic.com/p/are-tattoos-really-addictive-theres-a-reason-you-keep-coming-back-for-more-18166085
Sosin, I. (2014). EPA-0786-Tattoo as a subculture and new form of substantional addiction: The problem identification. European Psychiatry, 29, Supplement 1, 1.
Szabo, A., Griffiths, M.D., Demetrovics, Z., de la Vega, R., Ruíz-Barquín, R., Soós, I. &Kovacsik, R. (2019). Obsessive and harmonious passion in physically active Spanish and Hungarian men and women: A brief report on cultural and gender differences. International Journal of Psychology, 54, 598-603.
Sound affects: Another look at ‘music addiction’
In a previous blog that I wrote seven years ago, I looked at the concept of ‘music addiction’. As Philip Dorrell pointed out in his 2005 book What is Music? Solving a Scientific Mystery, music (like drugs) acts on our emotions and feelings. Regular readers of my blog will know that I describe myself as a ‘music obsessive’ and have written many articles about my own passion for listening to and collecting music (a few examples here, here, and here). One of the proudest moments of my life was getting a populist article on ‘music addiction’ published in Record Collector, my favourite magazine (see screenshot below and ‘Further reading’ for the full reference).

A 2011 study published by Dr. Valorie Salimpoor and her colleagues in Nature Neuroscience reported that on a neurochemical level, the pleasurable experience of listening to music releases the neurotransmitter dopamine that is important for the pleasures associated with rewards such as food, psychoactive drugs and money. This led to many headlines in newspapers along the lines of ‘people who say that they are addicted to music are not lying’. The team also reported that just the anticipation of pleasurable music led to increased dopamine release. Therefore, this helps explain why individuals (like myself) continually repeat songs or albums all the time as we want to re-experience those sensations repeatedly.
My previous article examined the concept of ‘musomania’ (i.e., an obsession with music). I noted that there had been very little in the way of academic or clinical literature on the topic although since writing my original article I have come across a couple of more recently published studies looking at the concept (one which published shortly after my original blog on the topic).
Dr. Nicolas Schmuziger and his colleagues published a paper in a 2012 issue of Audiology Research entitled ‘Is there addiction to loud music? Findings in a group of non-professional pop/rock musicians’. They hypothesized that listening to loud music may be an addictive behavior and that it could result in hearing damage (which is one of the reasons they published their findings in an audiology journal – also, they probably would have found it harder to publish their study in an addiction journal). They hypothesized that individuals who were members of non-professional pop/rock bands who had regular exposure to loud music would be more likely to show an addictive-like behavior for loud music compared to individuals who were not.
In their study, the researchers recruited 50 non-professional musicians and matched them with 50 control participants. Both groups completed a questionnaire called the Northeastern Music Listening Survey (NEMLS) comprising two basic scales. The first scale was an adaptation of the Michigan Alcohol Screening Test (MAST) to study the addictive-like behavior towards loud music. The NEMLS was developed by Dr. Mary Florentine and her colleagues to assess Maladaptive Music Listening (MML). It is a 24 item scale that (in relation to listening to music) examining five distinct areas: “(i) recognition and admission of the problem by self and others; (ii) legal, work and social problems; (iii) seeking involvement with treatment programs; (iv) marital-family difficulties; and (v) medical pathology”. In addition to socio-demographic questions (on age, gender, and level of education), a second component of the NEMLS included “four items assessing three out of seven clinical diagnostic criteria for substance dependence as outlined by the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) of the American Psychiatric Association…The other four criteria were already embedded within the MAST”.
Findings showed that nine (out of 50) met the DSM-IV criteria for ‘music dependence’ compared to just one individual in the control group. Seven of the nine musicians endorsing DSM criteria also had a positive score on the NEMLS. The researchers concluded that traits of addictive-like behavior to loud music were detected more often in members of nonprofessional pop/rock bands than in matched controls. The authors themselves pointed out that they did not explore the reasons why their participants “with repeated exposure to high-sound levels of electro-amplified music may be more likely to show traits of maladaptive behavior to loud music than the control subjects, and whether they develop such behavior before or after joining a pop/rock band”. They also concluded that only a few participants in their sample may have maladaptive music listening.
A more recent paper by Dr. Christine Ahrends entitled ‘Does excessive music practicing have addiction potential?’ was published in the journal Psychomusicology: Music, Mind, and Brain. She noted that:
“A theory that has previously been put forward but has not yet been empirically examined is the idea of “musical addictivity” (Panksepp, 1995)… Panksepp assumes an involvement of the opioid system for the emergence of “chills” when listening to music and concludes from there that listening to emotionally arousing music can be addictive through the release of opioids. On those grounds, Panksepp compares the phenomenon of music-induced chills (defining the main bodily response as a feeling of coldness) with that of drug addiction and its related withdrawal symptoms (like the so-called “cold turkey”). Although this comparison has major limitations, the general hypothesis might provide a new perspective on certain types of music-related behavior”.
Put simply, it has been argued that music has the capacity to activate the reward centres in the human brain and this can lead to behavioural addiction. Dr. Ahrends noted that recent studies supported the idea of addictive music consumption (citing the studies by Schmuziger and colleagues, and the study by Florentine and colleagues, both mentioned above) but not for music practicing. She wrote that:
“Anecdotal evidence has shown that some musicians either continue to practice through practice-induced pain or have psychosomatic disorders at deprivation, thus transforming a former goal-directed behavior into a maladaptive one”.
Based on the small empirical literature and anecdotal evidence, Dr. Ahrends hypothesized that music practice has the potential to be addictive and carried out an exploratory empirical study. To assess music practice addiction, she adapted the Exercise Dependence Scale Revised (EDS-R) (very similar to my own Exercise Addiction Inventory) and investigated the extent to whether musicians fulfilled the criteria to be classified as being “at risk for dependence” in relation to their music practice. A total of 25 musicians were recruited from German conservatories. Based on the scale scores three of the participants were classified as “at risk for dependence,” 20 of the participants were classified as “nondependent-symptomatic,” and two were classified as “nondependent-asymptomatic.” Based on these results, Dr. Ahrends claimed the findings provided tentative support for music practice addiction. She went on to argue that the concept of music practice addiction is a promising concept for further research and “may have implications for the understanding of mental health problems in musicians”.
In relation to this latter study, I would argue that this isn’t a case of ‘music practice addiction’ (if it exists at all) but if it exists, it is actually akin to ‘study addiction’ (a pre-cursor to ‘workaholism’) that I and my colleagues have published a number of papers on over the past few years (see ‘Further reading). The notion of ‘study addiction’ is highly controversial so it’s unsurprising that ‘music practice addiction’ would similarly be seen as controversial by most scholars working in the behavioural addiction field.
Dr Mark Griffiths, Distinguished Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK
Further reading
Ahrends, C. (2017). Does excessive music practicing have addiction potential? Psychomusicology: Music, Mind, and Brain, 27(3), 191-202.
Atroszko, P.A., Andreassen, C.S., Griffiths, M.D. & Pallesen, S. (2015). Study addiction – A new area of psychological study: Conceptualization, assessment, and preliminary empirical findings. Journal of Behavioral Addictions, 4, 75–84.
Atroszko, P.A., Andreassen, C.S., Griffiths, M.D. & Pallesen, S. (2016). Study addiction: A cross-cultural longitudinal study examining temporal stability and predictors of its changes. Journal of Behavioral Addictions, 5, 357–362.
Atroszko, P.A., Andreassen, C.S., Griffiths, M.D., Pallesen, S. (2016). The relationship between study addiction and work addiction: A cross-cultural longitudinal study. Journal of Behavioral Addiction, 5, 708–714.
Dorrell, P. (2005). Is music a drug? 1729.com, July 3. Located at: http://www.1729.com/blog/IsMusicADrug.html
Dorrell, P. (2005).What is Music? Solving a Scientific Mystery. Located at: http://whatismusic.info/.
Florentine, M., Hunter, W., Robinson, M., Ballou, M., & Buus, S. (1998). On the behavioral characteristics of loud-music listening. Ear and Hearing, 19(6), 420-428.
Griffiths, M.D. (2012). Music addiction. Record Collector, 406 (October), p.20.
The Local (2007). Man gets sick benefits for heavy metal addiction. June 19. Located at: http://www.thelocal.se/7650/20070619/
Morrison, E. (2011). Researchers show why music is so addictive. Medhill Reports, January 21. Located at: http://news.medill.northwestern.edu/chicago/news.aspx?id=176870
Panksepp, J. (1995). The emotional sources of “chills” induced by music. Music Perception, 13, 171–207.
Salimpoor, V.N., Benovoy, M., Larcher, K. Dagher, A. & Zatorre, R.J. (2011). Anatomically distinct dopamine release during anticipation and experience of peak emotion to music. Nature Neuroscience 14, 257–262.
Schmuziger, N., Patscheke, J., Stieglitz, R., & Probst, R. (2012). Is there addiction to loud music? Findings in a group of non-professional pop/rock musicians. Audiology Research, 2(e1), 57-63.
Smith, J. (1989). Senses and Sensibilities. New York: Wiley.
Stars in their highs: The psychology of ‘addiction to fame’ (revisited)
A couple of weeks ago, I was contacted by The Face magazine who wanted to know if fame can be addictive. I looked at this issue in one of my first articles published on this website as well as a number of other articles related to fame (such as ones on Celebrity Worship Syndrome, the psychology of being starstruck, celebriphilia [the pathological desire to have sex with a celebrity], celebrity endorsements in gambling advertising, and whether famous people are more susceptible to addictive behaviour). I ended up doing the interview via email and given that when The Face eventually publish their article I am unlikely to get more than a few soundbites, I thought I would publish my responses to the questions I was asked here.
The Face: Why do we desire fame?
Obviously not everyone wants to be famous but for those that desire it there are many reasons why they would want it. On a pragmatic level it is because fame might lead to benefits such as having more money, power, being pampered, living a life of luxury and/or greater sexual success, etc. On a psychological level it may lead to something that overcomes feelings of insecurity or feeds a need to be adored by others. Many people are famous as a by-product of what they do (e.g., being a professional sportsman, politician, etc.). Here, the desire is to do well in the chosen profession and fame is not usually the primary motivating factor. However, it is also worth noting that once someone has become famous and then are unable to maintain their public profile (e.g., a footballer retiring from the sport), those who desire fame will often do other things (e.g., reality TV) as a way of keeping themselves in the public eye.

The Face: Is fame an addiction?
Addiction to anything relies on constant rewards (what we psychologists call ‘reinforcement’). You cannot become addicted to something that doesn’t have constant rewards – and being famous can obviously bring constant rewards. I would class something as being an addiction if it fulfils six criteria. All of these have to be present to be a genuine addiction.
- Salience –This occurs when fame 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 socialised behaviour).
- Mood modification – This refers to the subjective experiences that people report as a consequence of being famous (e.g. the euphoric feelings that accompany the activities that they engage in).
- Tolerance – This is the process whereby increasing amounts of time spent trying to achieve and/or maintain fame.
- Withdrawal symptoms – These are the unpleasant feeling states and/or physical effects (e.g., the shakes, moodiness, irritability, etc.), that occur when the person feels they are no longer famous and/or in the public eye.
- Conflict – This is when the desire to be famous results in 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 about achieving and/or maintaining fame).
- Relapse – This is the tendency for repeated reversions to earlier patterns of excessive time spent trying to achieve and/or maintain fame.
My own view is that it is theoretically possible for individuals to be addicted to fame but the number that would fulfil all my criteria would be few and far between.
The Face: You have asked the question of what substance the people addicted to fame are actually addicted to. Couldn’t it just be validation?
The ‘object’ of fame addiction is likely to be highly idiosyncratic and individualistic (just like those individuals who are addicted to work). The rewards and reinforcements will be different for different people. Validation is a plausible generic factor as is feeling of wanting to be adored.
The Face: Is there any biological similarity between what an addictive substance like cocaine does to the brain and what fame does?
There is no empirical evidence to answer such a question but on a biological level, anything that we do that makes us feel good leads to increases in serotonin (which at a basic level leads to feelings of positive wellbeing and happiness) which leads to an increase in the body’s own drug-like chemicals (endorphins – opioid neuropeptides), and ultimately leading to increases of the neurotransmitter dopamine (often characterised as the body’s own chemical ‘pleasure’ producer)
The Face: Does the behaviour of people ‘addicted’ to fame mirror that of other addicts?
If we are going to call fame an ‘addiction’ it has to mirror the signs, symptoms, and consequences of other addictions. Consequently, very few people would be classed as addicted using my criteria above. For many individuals, fame might have addictive elements rather than being an addiction per se.
Dr Mark Griffiths, Distinguished Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK
Further reading
Griffiths, M.D. & Joinson, A. (1998). Max-imum impact: The psychology of fame. Psychology Post, 6, 8-9.
Halpern, J. (2007). Fame Junkies. New York: Houghton Mifflin Harcourt
McGuinness, K. (2012). Are Celebrities More Prone to Addiction? The Fix, January, 18. Located at: http://www.thefix.com/content/fame-and-drug-addiction-celebrity-addicts100001
Rockwell, D. & Giles, D.C. (2009). Being a celebrity: A phenomenology of fame. Journal of Phenomenological Psychology, 40, 178-210.
Streeter, L.G. (2011), Doctor helps people beat their fame addiction. Palm Beach Post, October 3. Located at: http://www.palmbeachpost.com/health/doctor-helps-people-beat-their-fame-addiction-1892781.html
Turner, M. (2007). Addicted to fame: Stars and fans share affliction. MSNBC Entertainment News, August 9. Located at: http://today.msnbc.msn.com/id/20199608/ns/today-entertainment/t/addicted-fame-stars-fans-share-affliction/
Needers of the pack: A brief look at addiction to Solitaire
A few days ago I was interviewed by Business Insider about the addictiveness of the card game Solitaire (also known as Klondike and Patience). The ‘hook’ for the Business Insider article (no pun intended) was that May 22 is National Solitaire Day (NSD). A quick look on the online National Day Calendar confirmed that NSD does indeed exist (a celebration day that only began for the first time last year) and the website also pointed out that the game is over 200 years’ old and that Solitaire “truly went viral” in 1990 when Microsoft included the Microsoft Solitaire game in Windows 3.0 (as a way to teach people how to use the mouse on their computers). The NSD webpage notes that:
“Over the past 28 years, Microsoft Solitaire has been providing great entertainment to hundreds of millions of players in every corner of the world…In 2012, Microsoft evolved Solitaire into the Microsoft Solitaire Collection, which features five of the top Solitaire games in one app. Since then, the game has been played by over 242 million people and has become so popular that each year 33 billion games are played with over 3.2 trillion cards dealt!”
Back in 2000, a short article on internet addiction in The Lancet by Peter Mitchell noted that one of the pioneers in internet addiction research, the clinical psychologist Maressa Hecht Orzack claimed to have a problem (a “near addiction”) playing Solitaire. Orzack was quoted in Mitchell’s article as saying: “So now I don’t have a computer at work. [My playing Solitaire] was getting that serious”. Orzack was also quoted in the Business Insider article. Her Solitaire playing was a “growing obsession” and she neglected her work and lost sleep because of her Solitaire playing. She said: “I kept playing solitaire more and more – my late husband would find me asleep at the computer. I was missing deadlines. I knew something had to be done”.
As far as I am aware, there is no empirical research about addiction to Solitaire, and I’ve never come across a published case study. However, I have mentioned Solitaire in a number of my papers over the years but all of them were in my critique of Dr. Kimberley Young’s taxonomy of the different types of internet addiction. Young claimed there were five different types of internet addiction (‘cyber-sexual addiction’, cyber-relationship addiction, ‘net compulsions’, ‘information overload’ and ‘computer addiction’). In a number of my publications in journals such as the Student British Medical Journal (1999), Addiction Research (2000), and the International Journal of Mental Health and Addiction (2006), I argued that the typology was flawed and that most of the examples Young provided were addictions on the internet, not addictions to the internet (and echoing my assertion that individuals are no more addicted to the internet than alcoholics are addicted to bottles).
The reference to Solitaire was in relation to Young’s final type of internet addiction – ‘computer addiction’. One of her examples of ‘computer addiction’ as the playing of Solitaire on computers. (I found this strange particularly because the example didn’t even rely on being on the internet – it was merely about individuals being addicted to playing Solitaire on computers and laptops). Young never provided any empirical evidence that she had ever met or treated anyone with an addiction to Solitaire, just that being addicted to Solitaire would be classed as a ‘computer addiction’ in her typology.
Young is not the only social scientist to use Solitaire as an example in an addiction typology. In a 2008 paper published in the Journal of Applied Social Science, Jawad Fatayer outlined what he believes are the four types of addiction – alpha addictions (addictions that impact the body and physical health such as nicotine addiction and food addiction), beta addictions (addictions that impact the mind and the body such as alcohol and other drug addictions), gamma addictions (all behavioural addictions), and delta addictions (two or more addictions experiences simultaneously). Addiction to Solitaire was listed as a gamma addiction (but again, there was no empirical evidence to support the claim that Solitaire addiction actually exists).
Business Insider spoke to two other psychologists in addition to myself. Dr. Chris Ferguson (with whom I have co-authored a few papers) said:
“It’s important to recognize the difference between really liking something and having a clinical addiction. People (say) ‘I’m addicted to cupcakes’, ‘I’m addicted to chocolate’ meaning ‘This is a really fun thing that I like to do a lot’. There’s a huge debate that goes on in the field right now about whether video games can be compared to things like substance abuse, or if video games are more similar to hobby-like activities that many people enjoy — and some people might overdo…a fixation with Solitaire is more of a behavioral addiction – an obsessive behavioral pattern that can be a sign of underlying mental distress or illness. People who have mental health issues, or are simply under stress, tend to be drawn to things that are fun and distracting. And that’s mostly good, actually. It’s just that sometimes, for some individuals, they may begin to really overdo those activities as a form of escapism…It’s not about technology. It’s about mental health”.
A clinical psychologist, Anthony Bean said:
“There are some clear signs that Solitaire might be playing too big a role in your life. (If you’re) noticing you’re putting more time than other areas into the game and, let’s say, not paying attention to your family, not paying attention to work, not paying attention to school”.
My contribution to the Business Insider was taken from an email I sent the journalist. Very little of what I sent was used. I was asked two specific questions: (i) what characteristics of the game Solitaire might make it addicting? and (ii) what should people be aware of as signs of a disruptive addiction to Solitaire (or gaming in general)?
In answer to the first question, I wrote that addictions rely on constant rewards (what psychologists refer to as reinforcement) and each game of Solitaire can be played quickly and individuals can be quickly rewarded if they win (positive reinforcement) but when they lose, the feeling of disappointment or cognitive regret can be eliminated by playing again straight away (negative reinforcement – playing as way to relive a dysphoric mood state). I also stated that addictions typically result as a coping mechanism to other things in a person’s life. They use such behaviours as a way of escape and the repetitive playing of games can help in such circumstances. For the overwhelming majority of people, such playing behaviour will be an adaptive coping mechanism but if the game takes over all other aspects of the person’s life and compromises their relationships and their education/occupation (depending upon their age), this becomes a poor coping strategy because the short-term benefits are heavily outweighed by the long-term costs.
In relation to the second question, I outlined what I believe to be the six core criteria of addictive behaviour and outlined them with what I believed a genuine Solitaire addiction would constitute. My response was purely hypothetical because I have never met or even heard of anyone being genuinely addicted to Solitaire. So, hypothetically, Solitaire addiction would comprise anyone that fulfilled all of the following six criteria:
- Salience –This occurs when Solitaire 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 socialised behaviour). For instance, even if the person is not actually playing Solitaire they will be constantly thinking about the next time that they will be (i.e., a total preoccupation with Solitaire).
- Mood modification –This refers to the subjective experiences that people report as a consequence of playing Solitaire 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’).
- Tolerance –This is the process whereby increasing amounts of time spent playing Solitaire are required to achieve the former mood modifying effects. This basically means that for someone engaged in Solitaire, they gradually build up the amount of the time they spend playing Solitaire every day.
- Withdrawal symptoms– These are the unpleasant feeling states and/or physical effects (e.g., the shakes, moodiness, irritability, etc.), that occur when the person is unable to play Solitaire because they are ill, have no computer connection, 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 playing Solitaire
- Relapse– This is the tendency for repeated reversions to earlier patterns of excessive Solitaire playing to recur and for even the most extreme patterns typical at the height of excessive Solitaire playing to be quickly restored after periods of control.
Finally, I just want to reiterate that I know of no evidence to support the contention that there are individuals genuinely addicted to Solitaire. However, I do think it’s theoretically possible even though I’ve yet to meet or hear about such individuals.
Dr Mark Griffiths, Distinguished Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK
Further reading
Fatayer, J. (2008). Addiction types: A clinical sociology perspective. Journal of Applied Social Science, 2(1), 88-93.
Griffiths, M.D. (1996). Behavioural addictions: An issue for everybody? Journal of Workplace Learning, 8(3), 19-25.
Griffiths, M.D. (1999). Internet addiction: Internet fuels other addictions. Student British Medical Journal, 7, 428-429.
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.
Mitchell, P. (2000). Internet addiction: genuine diagnosis or not? The Lancet, 355(9204), 632.
National Day Calendar (2018). National Solitaire Day. Located at: https://nationaldaycalendar.com/national-solitaire-day-may-22/
Widyanto, L. & Griffiths, M.D. (2006). Internet addiction: A critical review. International Journal of Mental Health and Addiction, 4, 31-51.
Young K. (1999). Internet addiction: Evaluation and treatment. Student British Medical Journal, 7, 351-352.
Profess on excess in the press: Problematic gaming as a behavioural addiction
As a Professor of Behavioural Addiction, one of duties is to profess. Consequently, today’s blog contains content from an interview that I did on problematic gaming as a behavioural addiction for a Spanish magazine. Because the published version was in Spanish I thought my blog readers might be interested in what I had to profess about behavioural addiction in its simplest terms (plus I never like to see things to be left unused or go to waste!).
The focus of your work is mainly behavioural addiction, could you start by giving a brief overview of what behavoural addiction is?
Behavioural addictions are those addictions that do not involve the ingestion of a psychoactive substance such as alcohol, nicotine or heroin. Some people believe that a person cannot become addicted to something in the absence of a psychoactive agent, but it is my passionate belief that people can become addicted to non-chemical behaviours. I have written a number of papers over the past 30 years that have tried to show that some behaviours when taken to excess (e.g., gambling, video gaming) are no different from (say) alcoholism or heroin addiction in terms of the core components of addiction (e.g. salience, tolerance, withdrawal, mood modification, conflict, relapse etc.). If it can be shown that a behaviour like pathological gambling can be a bona fide addiction (and I believe that it can), then there is a precedent that any behaviour that provides continuous rewards (in the absence of a psychoactive substance) can be potentially addictive. Such a precedent ‘opens the floodgates’ for other excessive behaviours to be considered theoretically as potential addictions (e.g. exercise, sex, eating, computer games, the internet) which is what I’ve been examining in some of my research.
Whilst a lot of work is around gambling addictions, you also do work on videogame addiction. What drew you to this area of research?
I suppose the ‘classic’ behavioural addiction is gambling, and it was this type of behavioural addiction that fuelled my interest in other forms of non-chemical addiction such as videogame addiction. Many people might think it’s obvious why a psychologist would be interested in studying behavioural addictions such as videogame addiction. It’s a ‘sexy’ subject, it’s media-friendly, the general public find it interesting, and almost everybody from all walks of life has some kind of view on it, whether it’s rooted in personal experience or in a finely argued theoretical perspective.
Do you feel that online gaming poses more of an issue than offline?
Yes, but in most cases only to those that have a vulnerability or susceptibility in the first place. The key difference is that in offline gaming a player can typically pause and/or save the game and come back to it a point of their choosing. Online games continue even when the player has logged off and that can lead to some people playing excessively because they ‘don’t want to miss anything’ in a 24/7 playing environment (the so-called ‘FOMO’ phenomenon – ‘fear of missing out’). I’ve argued in a lot of my work that the internet can enhance and/or facilitate the acquisition, development and maintenance of online addictions – but the crucial factor is that somebody would have to have some kind of addiction predisposition in the first place.
Are there any potential problems, in your field or otherwise, that could arise from the rapidly expanding user base of video games?
Obviously this depends on the types of game played and their content. Any activity that has the potential to enhance or facilitate excessive play can lead to potential problems. Depending on the types of game played, this could be in the form of medical effects (repetitive strain injuries, headaches, eye-strains, etc.), chronic health conditions (e.g., obesity), psychobiological effects (e.g., addiction), or alleged behavioural effects (e.g., increased aggression). The good news is that most of these potential effects occur in a very small minority of players and that reducing the time spent playing will almost always alleviate or eliminate such problems.
Can a person could spend a great deal of times playing games without being an addict?
For some people, definitely. Any behaviour that is done to excess – even if it is not an addiction – can potentially take away time from other important things such as job, relationships, and other hobbies. This will depend on the duties, constraints and context of the person in question. A 21-year old man with no partner, no children and no job may have time to play 8-10 hours a day without any negative detriment on their life. However, a married man with three children and a full-time job would find it very hard to play 8-10 hours a day without it seriously compromising some other aspect of their life.
Dr. Mark Griffiths, Distinguished Professor of Behavioural Addiction, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK
Further reading
Gentile, D.A., Bailey, K., Bavelier, D., Funk Brockmeyer, J., … Griffiths, M.D., … & Young, K. (2017). The state of the science about Internet Gaming Disorder as defined by DSM-5: Implications and perspectives, Pediatrics, 140, S81-S85. doi: 10.1542/peds.2016-1758H
Griffiths, M.D. (2010). Online video gaming: What should educational psychologists know? Educational Psychology in Practice, 26(1), 35-40.
Griffiths, M.D. (2010). The role of context in online gaming excess and addiction: Some case study evidence. International Journal of Mental Health and Addiction, 8, 119-125.
Griffiths, M.D. (2013). An overview of online gaming addiction. In Quandt, T. & Kröger, S. (Eds.), Multi.player – Social Aspects of Digital Gaming (pp.197-203). London: Routledge.
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.
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.M. (2016). A brief overview of Internet Gaming Disorder and its treatment. Australian Clinical Psychologist, 2(1), 20108.
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.
Pontes, H.M., Kuss, D.J. & Griffiths, M.D. (2017). Psychometric assessment of Internet Gaming Disorder in neuroimaging studies: A systematic review. In Montag, C. & Reuter, M. (Eds.), Internet Addiction Neuroscientific Approaches and Therapeutical Implications (pp.181-208). New York: Springer.
Pontes, H.M. & Griffiths, M.D. (2017). New concepts, old known issues: The DSM-5 and Internet Gaming Disorder and its assessment. In Gaming and Technology Addiction (pp. 893-898). Hershey, PA: IGI Global.
Torres-Rodriguez, A., Griffiths, M.D., Carbonell, X. Farriols-Hernando, N. & Torres-Jimenez, E. (2019). Internet gaming disorder treatment: A case study evaluation of four adolescent problematic gamers. International Journal of Mental Health and Addiction, 17, 1-12.
Torres-Rodriguez, A., Griffiths, M.D., Carbonell, X. & Oberst, U. (2018). Psychological characteristics of an adolescent clinical sample with Internet Gaming Disorder. Journal of Behavioral Addictions, 7, 707-718.