Category Archives: Psychology

Digital desires: A brief look at sexual thumb sucking and thumb fetishism

In previous blogs I have examined a number of extreme behaviours involving hands (both sexual and non-sexual) including hand wear fetishism, fingernail fetishism, ‘hands on hip’ fetishism, alien hand syndrome, ‘touch the truck’ endurance television, and thumb sucking as an addiction. However, it was while I was researching a previous blog on belly inflation fetishes that I came across a man who on the Yahoo! Answers website claimed he had a belly inflation fetish and a thumb fetish along with another person who responded saying he also shared the same fetish:

  • Extract 1: “Another weird fetish I have is ‘hitchhiker’s thumb’. Hitchhikers thumb is when the top part of your thumb bends backwards when pushed on or fully extended…The hitchhiker’s thumb fetish developed when I found out that my cousins could do it. I would ALWAYS ask questions about it and I would bend her thumbs back and forth for hours. And I just get turned on by it now…is this weird?” (Male, sexual orientation unknown)
  • Extract 2: “I [also] have a fetish for bendy thumbs hence the profile pic. It’s all good I say whatever turns u on and if not hurting anyone then it’s cool” (Male, sexual orientation unknown)

Although I have read about (i) thumb bondage (mentioned in a 2007 book chapter on themes of sadomasochistic expression by Dr. Charles Moser and Dr. Peggy Kleinplatz) and (ii) thumb sucking by adult babies that are into paraphilic infantilism, I had never read anything on standalone thumb fetishes. (I would also point out that the ‘thumb sucking’ is just one of many baby-like behaviours that paraphilic infantilists enjoy but do not necessarily see as a source of arousal in and of itself). There is also those who say that they engage is ‘thumb sex’ and defined by the online Urban Dictionary as when two people hold hands and run their thumbs around the other persons thumb or twiddle the thumbs”. There are also (for want of a better word) ‘cultural’ references to thumb fetishes such as the instrumental song ‘Mayor Oscar Goodman’s Thumb Fetish’ by US deathcore band Molotov Solution.

Unknown

As far as I am aware there has never been any empirical research on thumb fetishism. There are various online websites and forums that feature individuals that claim to have very specific types of thumb fetishes. This is one of the more specific that I found:

  • Extract 3: “I’m a 34 year old men and I have thin thumbs (each ones have the same width as an American/Canadian penny, that’s 0.74 inch or 19 millimeters). I got a fetish that seems to be pretty rare. It consists of being turn on by comparing my thin thumbs with a woman that has larger ones than mine. Also, the younger the woman is with larger thumbs, the better. It’s pretty inoffensive, but rare I think” (Male heterosexual).

There are also whole webpages dedicated to the sexiness of thumb sucking. Here are some of the online accounts I found on the Thumb Sucking Adults website. They begin by noting that adult thumb sucking is “sexy. This fact shouldn’t be too surprising in that it involves the sensual oral center [and] so much of what is human has become sexualized in one way or another that thumb sucking adults is just another part of the total picture”. They then highlight some of their readers’ experiences:

  • Extract 3: “I am a bisexual woman who finds other women sucking their thumbs extremely erotic…First of all, growing up, I had a very close friend who lived down the street from me who also sucked her thumb. Experimenting with sex at a very early age…[she] and I would spend hours together exploring our bodies and touching each other. We learned how to masturbate and although I was so young, I discovered how to reach orgasm. I think perhaps Janice and I shared a certain closeness in our friendship and later in our intimacy because we both sucked our thumbs and felt accepted by each other if not by peers who seemed to ridicule us…I can summarize that my earliest, deepest feelings of sexual desire were connected to both thumb sucking and a female partner. Many years passed and I dated men here and there, but never quite felt emotionally or sexually fulfilled [as with women]…From the e-mails I’ve read on your site, I have also noticed that it is mostly the men who find thumbsucking erotic. Perhaps as a woman who is mostly gay and possesses some traits and attributes more commonly associated with men…I am more turned on by this than other women. And why does it turn me on? I’m sure it has to do with my childhood friend and the feelings associated with that particular behavior”(Bisexual female).
  • Extract 4: “The arousal that naturally occurs when I do it. Thumb in mouth…hand on penis. This goes way back. I had contributed an early ‘embarrassment’ to [another website] saying that I watched a home movie in front of all our relatives and there was this shot of me, around 3 years old, standing by the garage, thumb in mouth, hand holding crotch. I had never seen that before. There was devilish laughter. I laughed along, but was shocked. I do remember a dry climax sucking my thumb when I was about 6 or 7. And my first real emission at age 12 or 13 involved thumb sucking in my bed. So it is very ingrained in me. The physical feeling of doing it brings such erotic pleasure. When I first insert my thumb in my mouth, pressing it against my palate and rubbing it back and forth about 1/2″, the stimulus begins. I don’t suck continuously. I do it for 1-2 minutes and take my thumb out for about 20 seconds and then put it back in. Each time it gets better and better. The key thing is that my thumb gets wetter and softer and SMOOTHER against my palate. I am very curious if anyone else sucks their thumb this way. I don’t actually SUCK it. I rub it. The other important part is that as I rub it, my tongue proceeds to pulsate. It’s involuntary. There’s no stopping it as long as I connect with the right spot on my palate. This enhances the feeling greatly. This dual rubbing, pulsating action. My thumb would have to be cut off to stop me from doing it. The last part of sexuality in thumb sucking is observing others doing it. I have to be honest in saying that watching…is an immense turn-on. Fortunately, I know I can control my desires” (Heterosexual male)
  • Extract 5: “Larry finds many things attractive in a woman. One of these things, apparently, is that she sucks her thumb. It probably is not essential that she does so (if it was, we’d be talking more along the lines of a fetish) but, if she does suck her thumb, he finds that attractive, whatever the underlying psychodynamics. I propose that his preferences aren’t much different than, say, another man’s predilections for big-breasted women, though both allures aren’t necessarily exclusive…There are societal stigmas associated with the habit. Try sucking your thumb whenever you want to and you’ll see that at least an undue amount of attention will be focused your way for a while. The point is, perhaps as adult thumb sucking becomes more widely known, it is natural that some out there will find it an endearing quality in a person…For the adult thumb sucker, this site has been liberating…And, in the case of Larry, the fact that he has felt solitude in his thumb sucking, all his adult life, it’s certainly understandable to me that among all the feelings that are engendered when he sees it in another for the first time…[This website] simply proposes that adult thumb sucking is more common than otherwise assumed and should be accepted since it is, essentially, harmless and, for those that indulge, beneficial. As for thumb sucking being sexually provocative, I suppose that anything human can be sexualized by others eventually. As long as it’s legal, what’s wrong with that?” (Gender and sexual orientation unknown)
  • Extract 6: “I love adult women who still suck on their thumb. Since I was a kid, I felt an attraction for girls sucking their thumbs. My twin sister sucked her thumb till she was 16 years old! When I first started masturbating at age 12, I thought of a girl sucking her thumb. I’ve always looked for women that sucked their thumb and then ask them to suck it for me. When I was 18, I met a girl I suspected of still sucking her thumb. Strangely, I noticed she didn’t have any marks or callus on her thumb. But from time to time, I saw teeth marks and lipstick marks on her thumb…We started to have thumb sucking sex and I loved it. She liked it also. We stayed together four years. It became a habit. She’d suck her thumb for me and then I’d suck her thumb while we made love. I never sucked my thumb but now I suck my thumb while masturbating and thinking about my former girlfriend’s thumb or another girl’s thumb. I always look for women sucking their thumbs in their cars while driving. I have seen three in all the years I have looked. Those times were awesome. I never tried to make contact. I am married now, but my wife never sucks her thumb. She will do it if I ask her, but that isn’t the same. I like it when an adult woman does it naturally…I love a woman with a thumb callus and nice teeth (there are a few). I love to see a wet thumb. I like it when an adult sucks her thumb with the index finger over the nose. I find that very sexy” (Heterosexual male).
  • Extract 7: I find thumb sucking sensual, sexual, erotic, comforting, calming…It’s like catching someone at their most vulnerable. Partly because of its social taboo, it can even be slightly ‘naughty’…But it is an exciting thought to me to perhaps one day ‘catch’ someone else thumb sucking. Thumb sucking provides sensations around the mouth and nose that can be reproduced during sex or loveplay, although thumb sucking is less tiring. It feels nice, smells nice, tickles [the] pleasure centers. It provides the sensations of skin-to-skin warmth that I think everyone of us craves…It’s sensual, it’s intimate. But it’s also sensual and sexual. I find myself sucking my thumb after sex much like I might grab for a cigarette…But I think that thumb sucking is by far more satisfying and truly far less addicting [than smoking]. And definitely far less damaging…Quite honestly I didn’t find out how much I found finger and thumb sucking an exciting part of foreplay and sex until I was 23” (Heterosexual female).
  • Extract 8: I suck my thumb for the usual reasons, tension relief, to go to sleep, it feels good. But, I notice that other contributors here suck their thumb because it also feels erotic, and, I have to say, I agree…When I’m aroused, it enhances the feeling so much more. So it’s obvious that I’ve learned to associate my thumb sucking with something sexual…When I look at the photos of women at this site, sucking away, I just find them so beautiful, so sexually enthralling….First off, there’s the lips. I think most people can understand why lips can be very erotic. I don’t want to get into heavy psychology, but, let’s face it, lips are sexy, especially full lips, parted ever so slightly. They’re like an invitation to something exciting…When I see a woman’s full lips open just a bit, my tongue gets an irresistible urge to explore her sweet mouth…If her teeth were affected by thumb sucking, all the better. The thought that she can’t stop her habit, and the pleasure she derives from it, even if her teeth are affected to the point of obvious buckedness adds that much more to my sensation…She looks like something innocent, childlike but not a child. Her profile, exaggerating her now protrusive lips, wrapped around a phallus-like object that is her compulsion, her requirement, her urgency…I want her thumb to feel comfortable in my mouth as I experience, once again, her essence, her habit as mine” (Heterosexual male).

Obviously this is just a small selection of online accounts of sexual thumb sucking I have come across and I can’t know for sure that they are genuine (but they appear that way to me). Also, I have no idea whether these are typical but I can make a few tentative conclusions. Firstly, both males and females can find thumb sucking sexually stimulating. Secondly, sexual thumb suckers tend to be heterosexual (although one account was from a bisexual woman). Thirdly, most experiences of sexual thumb sucking are rooted in childhood experiences and that the acquisition and development of such behaviour is related with associative pairing (i.e., classical conditioning). Fourthly, no-one pathologizes the behaviour, and as long as the act is consensual, there is absolutely nothing wrong with the behaviour as a sexual preference. Finally, none of the accounts suggest the sexual thumb sucking is fetishistic – just that it is a non-normative sexual expression that fits alongside their other sexual experiences.

While researching this article I also came across the remarkable story of American Rafe Briggs (from Oakland, California) in a 2013 issue of the International Business Times. In 2004, Biggs fell off a roof and broke his neck leaving him paralyzed from the chest down. He obviously thought he would never experience any kind of sexual pleasure again but he was wrong:

“Turns out he can. Biggs, 43, says that his thumb is his ‘surrogate penis’, and that he gets ‘orgasmic sensations’ whenever it’s stimulated. ‘I never thought it would be possible, but massaging and sucking on my thumb, feels a lot like my penis used to feel – it’s really hot” said Biggs, whose girlfriend helped him discover this phenomenon a year after the accident. Sex therapists like Lisa Skye Carle, who works with Biggs, calls it a ‘transfer orgasm – where another place on the body gives the same sensation”. Biggs has made it his mission to helping quadriplegics lead sexually fulfilling lives, working with the group ‘Sexability’ an ‘organization committed to empowering people with disabilities to explore sexuality and creating intimate loving relationships. Since our beginning in 2006, we have been working with individuals, groups and organizations to transform sexuality and disability’. ”

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

Further reading

Huffington Post (2013). Rafe Biggs’ thumb has become his ‘surrogate penis’ after accident left him paralyzed, April 22, Located at: http://www.huffingtonpost.com/2013/04/22/rafe-biggs-thumb_n_3132325.html?utm_hp_ref=weird-news

Moser, C., & Kleinplatz, P. J. (2007). Themes of SM expression. In D. Langdridge & M. Barker (Eds.) Safe, sane & consensual:  Contemporary perspectives on sadomasochism.  (pp. 35-54). Hampshire, UK:  Palgrave Macmillan.

Thumb Sucking Adults (undated). Why [thumb sucking] is sexy. Located at: http://www.thumbsuckingadults.com/mytsingissexypage.htm

Tungol, J.R. (2013). Paralyzed man Rafe Biggs has ‘orgasmic sensations’ through his thumb, ‘surrogate penis’ International Business Times. April 22. Located at: http://www.ibtimes.com/paralyzed-man-rafe-biggs-has-orgasmic-sensations-through-his-thumb-surrogate-penis-1208099

 

Nag, nag, nag: Another look at horse race betting and problem gambling

Literature reviews carried out by myself and others in the gambling studies field have concluded that electronic gaming machines (EGMs such as slot machines, pokie machines, video lottery terminals [VLTs], etc.) tend to have a higher association with problem gambling than other forms of gambling. Although any form of gambling can be potentially problematic, there is surprisingly little in the academically peer-reviewed gambling literature showing that horse race betting has a high association with problem gambling, particularly in comparison to activities such as EGM gambling.

Along with individual susceptibility and risk factors of the individual gambler, the most important determinants in the development and maintenance of problem gambling are structural characteristics, particularly those relating to the speed and frequency of the game (and more specifically event frequency, bet frequency, event duration and payout interval). More specifically, I have argued that researchers in the gambling studies field need to think about game parameters rather than specific game type when it comes to any association with problem and pathological gambling and that event frequency is the single most important determinant.

horse-racing

A study by Dr. Debi LaPlante and colleagues in the European Journal of Public Health examining types of gambling and level of gambling involvement (using data from the 2007 British Gambling Prevalence Survey of which I was one of the co-authors) indicated that when level of gambling is accounted, no specific type of gambling was associated anymore with disordered gambling, and that level of involvement in gambling better characterizes problem gambling than individual forms of gambling. In fact, this paper also concluded that:

“Two games, private betting and betting on horses, had a reversal of association. After controlling for involvement, individuals who engaged in private betting or betting on horses were significantly less likely to have gambling-related problems than people who did not…One interesting, and perhaps unanticipated, finding was that the nature of the relationships between private betting and betting on horses and gambling problems changed when we considered the influence of involvement: engaging in these types of gambling, but not other types, seemed to protect players against developing gambling problems. This finding suggests that the apparent risk between gambling activities and developing gambling-related problems resides, perhaps primarily or even entirely, among individuals who have high rates of involvement. For others who do not have high rates of involvement, playing these types of games might reflect social setting characteristics (e.g. norms) that encourage control and preclude excessive gambling”.

Similar results were also found in an Australian study by Dr. James Phillips and his colleagues in a 2013 issues of the Journal of Gambling Studies. A 2009 study by Dr. Thomas Holtgraves in the journal Psychology of Addictive Behaviors analysed all data from population-based surveys conducted in Canada between 2001 and 2005 comprising 21,374 participants (including 12,229 who had gambled in the past year). Using the Problem Gambling Severity Index to assess problem gambling, the study found that horse race gamblers had the lowest prevalence rates of problem gambling along with those that played bingo and bought raffle tickets (3%). Some types of gambling activity such as sports betting (25%) and playing video lottery terminals (18%) were much higher.

The most recent British Gambling Prevalence Survey [BGPS] published in 2011 reported that the most popular British gambling activity was playing the National Lottery (59%), a slight increase in participation from 2007 (57%). The prevalence of past-year betting on horse races was 16%. Among past year gamblers, problem gambling prevalence rates were highest among those who had played poker at a pub/club (12.8%), online slot machine games (9.1%) and fixed odds betting terminals (8.8%). The lowest problem gambling rates were among those that played the National Lottery (1.3%) and scratchcards (2.5%). Horse race gamblers also had one of the lower prevalence rates for problem gambling (2.7%). However, problem gamblers also gamble on many different activities and problem gambling prevalence was highest among those that gambled on nine or more different activities on a regular basis (28%).

More recently in 2014, Carla Seabury and Heather Wardle published an overview of gambling behaviour in England and Scotland by combining the data from the Health Survey for England and Scottish Health Survey (n=11,774 participants). It was reported that two-thirds of the sample (65%) had gambled in the past year, with men (68%) gambling more than women (62%). The findings were similar to the previous BGPS reports and showed that in terms of past-year gambling, the most popular forms of gambling were playing the National Lottery (52%; 56% males and 49% females) and scratchcards (19%; 19% males and 20% females). One in ten people (10%) had a engaged in horse race betting (12% males and 8% females).

Again, problem gambling rates were also examined by type of gambling activity. Results showed that among past year gamblers, problem gambling was highest among spread betting (20.9%), playing poker in pubs or clubs (13.2%), bet on events other than horse racing with a bookmaker (12.9%), gambling at a betting exchange (10.6%) and playing machines in bookmakers (7.2%). The activities with the lowest rates of problem gambling were playing the National Lottery (0.9%) and scratchcards (1.7%). Problem gambling among horse race gamblers were also among the lowest (2.3%). Problem gambling rates were highest among individuals that had participated in seven or more activities in the past year (8.6%) and lowest among those that had participated in a single activity (0.1%).

Along with Filipa Calado, I recently co-authored two reviews of problem gambling worldwide (one on adult gambling and one of adolescent gambling). None of the studies we reviewed highlighted horse racing to be of particular concern in relation to problem gambling and only two countries (France and Sweden) was horse race betting one of the most preferred and prevalent forms of gambling. Analysis of a 2011 French national prevalence survey by Dr. Jean-Michel Costes reported that horse race betting was fourth in a list of six gambling activities that were most associated with problem gambling (with Rapido [a high event frequency lottery game], sports betting, and poker being the most problematic gambling forms). There is also evidence from gambling treatment service providers that horse race betting is much less of an issue than other forms of gambling. In Finland, the national helpline for problem gamblers, [Peluuri] only 1% of the telephone calls received concern horse betting. In Germany, two studies surveying therapists that treat problem gambling found that the vast majority of treatment was for slot machine gamblers (approximately 75%-80% of clients) whereas treatment for horse race gamblers was 0.6%-1.7% of clients. Unfortunately, the UK problem gambling helpline run by GamCare does not separate horse race betting from any other sports betting in its’ annual helpline statistics. The most recent (2016) GamCare report noted that 11% of their callers concerned betting in a bookmaker’s but this figure included all betting not just horse race betting.

In 2008, I was invited to write a report for the Gambling Commission and reported that internationally, the vast majority of problem gamblers that contact helplines or seek treatment report machine gambling as their primary form of gambling. In Europe many countries report that it is problem EGM gamblers that are most likely to seek treatment and/or contact national gambling helplines (rather than other forms of gambling including horse race betting) including 60% of gamblers seeking help in Belgium, 72% in Denmark, 93% in Estonia, 66% in Finland, 49.5% in France, 83% in Germany, 75% in Spain, and 35% in Sweden.

All data collected in Great Britain and elsewhere in the world demonstrate that horse race betting has a relatively low past-year participation rate. All major literature reviews have concluded that electronic gaming machines tend to have a higher association with problem gambling than other forms of gambling including horse race betting. Although no form of gambling is immune from problem gambling, horse race betting has one of the lowest associations with problem gambling. Furthermore, some analysis of the most recent BGPS data has demonstrated that after controlling for gambling involvement, individuals who engage in horse race betting are significantly less likely to have gambling-related problems than people who did not.

For the vast majority of horse gamblers, the activity is a discontinuous form of gambling in that they make one or a few bets in a small time period but then not bet again for days or weeks. Therefore, the event frequencies for betting on horse racing are much lower than other gambling activities and helps explain why there is a low association with problem gambling compared to activities that have much higher event frequencies (e.g., slot machines, roulette, blackjack, etc.).

Dr Mark Griffiths, Professor of Gambling Studies, International Gaming Research Unit, Nottingham Trent University, Nottingham, UK

Further reading

Abbott, M.W.  (2007). Situational factors that affect gambling behavior. In G. Smith, D. Hodgins & R. Williams (Eds.), Research and Measurement Issues in Gambling Studies. pp.251-278. New York: Elsevier.

Calado, F., Alexandre, J. & Griffiths, M.D. (2016). Prevalence of adolescent problem gambling: A systematic review of recent research. Journal of Gambling Studies. doi: 10.1007/s10899-016-9627-5

Calado, F. & Griffiths, M.D. (2016). Problem gambling worldwide: An update of empirical research (2000-2015). Journal of Behavioral Addictions, 5, 592–613.

Costes, J. M., Pousset, M., Eroukmanoff, V., Le Nezet, O., Richard, J. B., Guignard, R., … & Arwidson, P. (2011). Les niveaux et pratiques des jeux de hasard et d’argent en 2010. Tendances, 77(1), 8

Costes, J. M, Eroukmanoff V., Richard, J.B, Tovar, M. L. (2015). Les jeux de hasard et d’argent en France en 2014. Les Notes de l’Observatoire des Jeux, 6, 1-9.

Delfabbro, P.H., King, D.L & Griffiths, M.D. (2012). Behavioural profiling of problem gamblers: A critical review. International Gambling Studies, 12, 349-366.

EMPA Pari Mutuel Europe (2012). Common Position On Responsible Gambling. Brussels: EMPA.

GamCare (2016). Annual Statistics 2015/2016. London: GamCare.

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

Griffiths, M.D. (2008). Impact of high stake, high prize gaming machines on problem gaming. Birmingham: Gambling Commission.

Griffiths, M.D. (2016). Problem gambling and gambling addiction are not the same. Journal of Addiction and Dependence, 2(1), 1-3.

Griffiths, M.D. & Auer, M. (2013). The irrelevancy of game-type in the acquisition, development and maintenance of problem gambling. Frontiers in Psychology, 3, 621. doi: 10.3389/fpsyg.2012.00621.

Holtgraves, T. (2009). Gambling, gambling activities, and problem gambling. Psychology of Addictive Behaviors, 23(2), 295-302.

LaPlante, D.A., Nelson, S.E., LaBrie, R.A., & Shaffer, H.J. (2009). Disordered gambling, type of gambling and gambling involvement in the British Gambling Prevalence Survey 2007. The European Journal of Public Health, 21, 532–537

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

Parke, J. & Griffiths, M.D. (2007). The role of structural characteristics in gambling.  In G. Smith, D. Hodgins & R. Williams (Eds.), Research and Measurement Issues in Gambling Studies. pp.211-243. New York: Elsevier.

Phillips, J.G., Ogeil, R., Chow, Y.W., & Blaszczynski, A. (2013). Gambling involvement and increased risk of gambling problems. Journal of Gambling Studies, 29(4), 601-611.

Seabury, C. & Wardle, H. (2014). Gambling behaviour in England and Scotland. Birmingham: Gambling Commission.

Sussman, S., Lisha, N. & Griffiths, M.D. (2011). Prevalence of the addictions: A problem of the majority or the minority? Evaluation and the Health Professions, 34, 3-56.

Wardle, H., Moody. A., Spence, S., Orford, J., Volberg, R., Jotangia, D., Griffiths, M.D., Hussey, D. & Dobbie, F. (2011).  British Gambling Prevalence Survey 2010. London: The Stationery Office.

Wardle, H., Sproston, K., Orford, J., Erens, B., Griffiths, M. D., Constantine, R., & Pigott, S. (2007). The British Gambling Prevalence Survey 2007. London: National Centre for Social Research.

Feeling hot, hot, hot: A brief look at sex and the sun

Most people now accept that weather can affect mood state and for some people can lead to extreme depression in the form of Seasonal Affective Disorder. There also seems to be some evidence that weather can affect people’s sex lives. Being too hot or too cold is likely to lessen the desire to engage in sexual behaviour. Most academic research appears to indicate that sex drives are higher in spring and summer. One of the reasons given for this is that during spring and summer, there is more sun, and that a particular hormone – Melanocyte Stimulating Hormone (MSH) – stimulates sex, particularly in women.

Sex-and-the-sun-online-300x300@2x-300x195@2x

A number of studies have also indicated that during the spring and summer months, the body produces more seretonin (the so-called ‘feel good neurotransmitter’) because increased luminosity of sunlight. During the winter months as the amount of sunlight decreases, the body produces more melatonin, and this appears to inhibit sex drives. However, there is wide individual variation and the weather and subsequent hormone stimulation differs highly from one person to the next. As an online article by Shiv Joshi confirms:

“Sunlight has a direct effect on the brain’s serotonin production, according to researchers at the Human Neurotransmitter Laboratory and Alfred and Baker Medical Unit, Baker Heart Research Institute, Australia. Our serotonin levels increase with increase in luminosity. And how does that matter? Among other things, serotonin also regulates arousal, says Ray Sahelian, MD, author of Mind Boosters…Not just serotonin, but sunlight affects many other hormones in our body as well, some of which are associated with mood and pleasure feelings, according to professor Carmen Fusco, an instructor in pharmacology. It decreases melatonin, norepinephrine, and acetylcholine and increases cortisol, serotonin, GABA, and dopamine. The summer heat is good for your sex life too. It works on your muscles, by relaxing them and intensifies sensations of the skin. Further, the heat slows us down. This helps us get in touch with our more subdued sensual side, according to psychologist Stella Resnick, PhD, author of The Pleasure Zone”.

German researchers Winfried März and colleagues examined the relationship between vitamin D production (aided by sunny weather) and sex hormones (published a 2010 issue of the journal Clinical Endocrinology). In a study of 2,299 men, the researchers found that levels of Vitamin D were associated with androgen (i.e., testosterone) production with peak levels in August (the sunniest time of year in Germany). They concluded that testosterone and Vitamin D levels “are associated in men and reveal a concordant seasonal variation. Randomized controlled trials are warranted to evaluate the effect of vitamin D supplementation on androgen levels”. The study was replicated by Dr. Katharina Nimptsch and her colleagues among a sample of 1,362 men (also published in the same journal in 2012), and they found the same association between Vitamin D and testosterone production (although they found no seasonal effect). However, a more recent 2014 study published by Dr. Elizabeth Lerchbaim and her colleagues in the journal Andrology found no association (but it was on a much smaller sample of 225 men).

Although I have been unable to track down the academic source, an article by Sam Rider in Coach Magazine claimed that:

 “Exposing the skin to sunlight for just 15-20 minutes can raise your testosterone levels by 120%, says a report from Boston State Hospital in the US. The research also found that the hormone increased by a whopping 200% when genital skin was exposed to the sun. Stick to the privacy of your own garden though – we don’t want any arrests”.

In previous blogs I briefly reviewed some of the many studies into courtship requests by Dr. Nicolas Guéguen (which you can read here and here). In one of his studies (published in a 2013 issue of Social Influence), Guéguen examined the effect of sunshine on romantic relationships (reasoning that sunny weather puts people in a better mood than non-sunny weather). In this study, an attractive 20-year old man approached young women walking alone in the street and asked them for their telephone number in two conditions (sunny or cloudy days). The temperature was controlled for and all days of the experiment were dry. The results showed that more women gave the man their telephone numbers on the sunny days. Guéguen concluded that positive mood induction by the sun may explain the success in courtship solicitation.

Finally, in his 2009 book Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices, Dr. Aggrawal was quoted as saying that “like allergies, sexual arousal may occur from anything under the sun including the sun”. In fact, Aggrawal’s book arguably contains the most references to fetishes that concern the weather. This includes fetishes and paraphilias in relation to sexual arousal to sunny weather (actirasty), sexual arousal from the cold or winter (cheimaphilia), sexual arousal from snow (chionophilia), sexual arousal from thunderstorms (brontophilia), sexual arousal from thunder and lightning (keraunophilia), sexual arousal from fog (nebulophilia), sexual arousal from rain and being rained upon (ombrophilia and pluviophilia), and love of thunder (tonitrophilia). However, as far as I am aware, no scientific research has ever investigated any of these alleged fetishes.

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.

Amanad, V. (2012). Does weather affect your sex drive? Only My Health, June 29. http://www.onlymyhealth.com/does-weather-affect-your-sex-drive-1340990772

Guéguen, N. (2013). Weather and courtship behavior: A quasi-experiment with the flirty sunshine. Social Influence, 8, 312-319.

Herbert, E. (2009). Sex: Weather-driven desire? Elle, July 28. Located at: http://www.elle.com/life-love/sex-relationships/sex-tips-women

Hurwood, B.J. (1965). The Golden Age of Erotica. Los Angeles, CA: Sherbourne Press.

Joshi, S. (2010). Summer and intimacy: Felling hot, hot, hot. Complete Wellbeing, May 11. Located at: http://completewellbeing.com/article/feeling-hot-hot-hot/

Lerchbaum, E., Pilz, S., Trummer, C., Rabe, T., Schenk, M., Heijboer, A. C., & Obermayer‐Pietsch, B. (2014). Serum vitamin D levels and hypogonadism in men. Andrology, 2(5), 748-754.

Nimptsch, K., Platz, E. A., Willett, W. C., & Giovannucci, E. (2012). Association between plasma 25‐OH vitamin D and testosterone levels in men. Clinical Endocrinology, 77(1), 106-112.

Rider, S. (2015). How to boost your testosterone levels (the natural way). Coach Magazine, October 5. Located at: http://www.coachmag.co.uk/lifestyle/1558/10-ways-boost-testosterone

Wehr, E., Pilz, S., Boehm, B. O., März, W., & Obermayer‐Pietsch, B. (2010). Association of vitamin D status with serum androgen levels in men. Clinical Endocrinology, 73(2), 243-248.

It takes all sports: A brief look at sport-related betting

Over the past year I have been carrying out research with my Spanish colleague – Dr. Hibai Lopez-Gonzalez – into problematic sports betting and sports betting advertising which has already produced a number of papers (see ‘Further reading’ below) and with many more to come. One of the issues we have faced in contextualising our work is that there is no such concept as sport-related problem gambling in prevalence surveys because problem gambling is assessed on the totality of gambling experiences rather than a single activity. For instance, in the three British Gambling Prevalence Surveys (BGPSs) conducted since 1999, sport-related gambling is subsumed within a number of different gambling forms: ‘football pools and fixed odds coupons’, ‘private betting’, and ‘other events with a bookmaker’. The 2010 BGPS (which I co-authored) included ‘sports betting’ as a category, along with ‘football pools’ (no coupons), ‘private betting’, ‘spread betting’ (which can include both sports or financial trading). In addition, the 2010 BGPS added a new category under online gambling activities to include ‘any online betting’. More recently, the Health Survey for England also introduced a new category: ‘gambling on sports events (not online)’.

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Despite these limitations, some evidence can be inferred from gambling activity by gambling type. In 2014, Heather Wardle and her colleagues combined the gambling data from the Health Survey for England and the Scottish Health Survey. They reported that among adult males aged 16 years and over during a 12-month period, 5% participated in offline football pools, 8% engaged in online betting (although no indication was made about whether this only involved sport), and 8% engaged in sports events (not online). The categories were not mutually exclusive so an overlapping of respondents across categories was very likely. A similar rate was found in South Australia in a 2013 report the Social Research Centre with those betting on sports over the past year accounting for 6.1% of the adult population, an increase from the 4.2% reported in 2005.

In Spain, the Spanish Gambling Commission (Direccion General de Ordenacion del Juego [DGOJ] reported that 1.5% of the adult (male and female) population had gambled online on sports in 2015. This is a significantly lower proportion compared with the British data, although the methodological variations cannot be underestimated. Spanish data also shows that, among those who have gambled online on a single gambling type only, betting on sports is the more prevalent form with up to 66% of those adults.

In France, the data on the topic only focuses on those who gamble rather than examining the general population of gamblers and non-gamblers. Among online gamblers, Dr. Jean-Michel Costes and colleagues reported in a 2011 issue of the journal Tendances that 35.1% had bet on sports during the last 12 months. In another French study by Costes and colleagues published in a 2016 issue of the Journal of Gambling Studies, sports betting represented 16.4% of the gambling cohort, although again, the representativeness of sports betting behaviour among the general gambling and non-gambling population could not be determined.

Due to the aforementioned shortcomings in the definition of sport-related gambling, there is only fragmented empirical evidence concerning the impact of sports-related problem gambling behaviour. For instance, in 2014, Dr. Nerilee Hing noted that clinical reports indicate that treatment seeking for sports-related problem gambling had grown in Australia. In British Columbia (Canada), a 2014 survey by Malatests & Associates for the Ministry of Finance reported that 23.6% of at-risk or problem gamblers had gambled on sports either offline or online. A smaller proportion (16.2%) was found in the Spanish population screened in the national gambling DGOJ survey, except this subgroup was entirely composed of online bettors.

In a 2011 study published in International Gambling Studies with patients from a pathological gambling unit within a community hospital in Barcelona, Dr. Susana Jiménez-Murcia and her colleagues found that among those who had developed the disorder gambling online only (as opposed to those who gamble both online/offline or offline only), just over half (50.8%) were sport bettors. Those who gambled online only (on any activity) and those that only gambled online on sports events represented a small minority of the total number of problem gamblers. Overall, there is relatively little research on this sub-group of gamblers therefore I and others will be monitoring the evolution of this trend as the online gambling population grows.

(Note: This blog was co-written with input from Dr. Hibai Lopez-Gonzalez).

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

Further reading

Costes, J-M, Kairouz, S., Eroukmanoff, V., et al. (2016) Gambling patterns and problems of gamblers on licensed and unlicensed sites in France. Journal of Gambling Studies 32(1), 79–91.

Costes, J., Pousset, M., Eroukmanoff, V., et al. (2010). Gambling prevalence and practices in France in 2010. Tendances, 77, 1–8.

DGOJ (2016a) Análisis del perfil del jugador online. Madrid: Ministerio de Hacienda y Administraciones Públicas.

DGOJ (2016b) Estudio sobre prevalencia, comportamiento y características de los usuarios de juegos de azar en España 2015. Madrid: Ministerio de Hacienda y Administraciones Públicas.

Hing, N. (2014) Sports betting and advertising (AGRC Discussion Paper No. 4). Melbourne: Australian Gambling Research Centre.

Jiménez-Murcia S, Stinchfield R, Fernández-Aranda F, et al. (2011) Are online pathological gamblers different from non-online pathological gamblers on demographics, gambling problem severity, psychopathology and personality characteristics? International Gambling Studies 11(3), 325–337.

Lopez-Gonzalez, H., Estevez, A. & Griffiths, M.D. (2017). Marketing and advertising online sports betting: A problem gambling perspective. Journal of Sport and Social Issues, in press.

Lopez-Gonzalez, H. & Griffiths, M.D. (2016). Is European online gambling regulation adequately addressing in-play betting advertising? Gaming Law Review and Economics, 20, 495-503.

Lopez-Gonzalez, H. & Griffiths, M.D. (2017). Understanding the convergence of online sports betting markets. International Review for the Sociology of Sport, in press.

Lopez-Gonzalez, H. & Griffiths, M.D. (2017). ‘Cashing out’ in sports betting: Implications for problem gambling and regulation. Gaming Law Review and Economics, in press.

Malatests & Associates Ltd (2014). 2014 British Columbia Problem Gambling Prevalence Study. Victoria, Canada: Gaming policy and enforcement branch, Ministry of Finance.

The Social Research Centre (2013) Gambling prevalence in South Australia. Adelaide, Australia: Office for problem gambling. Available from: http://phys.org/news/2012-03-lung-doctors-respiratory-diseases-worsen.html.

Wardle, H., Moody. A., Spence, S., Orford, J., Volberg, R., Jotangia, D., Griffiths, M.D., Hussey, D. & Dobbie, F. (2011).  British Gambling Prevalence Survey 2010. London: The Stationery Office.

Wardle H, Seabury C, Ahmed H, et al. (2014) Gambling behaviour in England & Scotland. Findings from the health survey for England 2012 and Scottish health survey 2012. London: NatCen Social Research.

Wardle, H., Sproston, K., Orford, J., Erens, B., Griffiths, M.D., Constantine, R. & Pigott, S. (2007). The British Gambling Prevalence Survey 2007. London: The Stationery Office.

Tongue-tied: A look inside the weird world of Japanese doorknob licking

Over the past three years or so, I have written a number of articles on various aspects and practices of Japanese sexual culture. These have included Oshouji (i.e., a calligraphy fetish where the decorative writing is done on a person’s – usually naked – body), Hentai (i.e., Japanese hardcore Manga cartoon pornography), Nyotaimori (i.e., eating a variety of foods or a whole meal off somebody’s naked body), Tamakeri (i.e., the masochistic practice of getting sexual pleasure and arousal from being kicked in the testicles), Burusera (i.e., Japanese shops that sell [amongst other things] soiled female undergarments and fetishist school uniforms), Omorashi (i.e., deriving sexual pleasure from having a full bladder or a sexual attraction to someone else experiencing the discomfort of a full bladder) and Shokushu Goukan (i.e., tentacle rape).

About 18 months ago, I came across the Art-Sheep website featuring loads of photographs of young Japanese women licking doorknobs. At first I thought it was some kind of spoof website but after a few hours of online research I realised that it was not a joke, and that there were a fair few articles examining the behaviour. For instance, an article on the Cracked website (‘The 6 Most Bizarre Safe For Work Fetishes’) claimed that the explanation for such sites was “straightforward” and that the Japanese pornography censorship laws are so draconian that it forces Japanese to be more creative about what they masturbate to”. The article claimed:

“Anybody with a porn addiction can tell you, in order to keep things fresh, you have to get a bit weird. Japan, always on the cutting edge of innovation, simply took this idea and ran with it all the way to Planet Dick Tentacle, which brings us to these images of girls licking doorknobs…Men (and presumably some women) get turned on by the sight of females licking anything. The curse of being a woman is knowing that you can’t eat an ice cream cone or a banana in public without several nearby males achieving a state of semi-arousal”.

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A number of online articles claim that because of the strict censorship laws in Japan, the country is “infamous for using a wide variety of stand-ins” for penises as there is a “crackdown on the depiction of genitalia” (so swords, fish, vegetables, and – as mentioned briefly above – tentacles, have been used as substitute phallic images). It has also meant that Japanese manga animators and videogame artists have become more innovative in displaying acts of sexuality. The Cracked article also claimed the doorknob licking trend “is a fairly big deal in Japan, even getting featured on national television”. But what is the attraction of seeing women specifically lick doorknobs (beyond the obvious phallic symbolism)? The Cracked article implies that it could be a masochistic act in that the women is typically viewed on her knees seen licking something that arguably has more bacteria on it than most other household items (bar the toilet), and that the act is therefore degrading and humiliating. Of all the images I have seen myself on various websites, all of the Japanese women were fully clothed (although some did appear to pander to clothing and uniform fetishes, such as the young women being dressed in schoolgirl uniforms, or for those with a fetish for spectacles).

A number of articles (such as those in the ‘Further reading’ list below) report that doorknob licking originated from the self-taught Japanese artist Ryuko Azuma renowned for his sexually provocative illustrations (you can check out some of his work here). More bizarrely, the impetus was (according to Azuma) “a drunken tweet…I tweeted that a collection of photos of a girl licking a doorknob [and thought it] would be a big hit”. The tweeted photographs went viral and subsequently featured on a Japanese television show. Azuma collaborated with a young photographer Ai Ehara, and ‘Doorknob Shojo’ (i.e., the ‘Doorknob Girl’) took on a life of its’ own. An article on the Kotaku website noted:

“The settings vary as much as the doorknobs, from nondescript apartments to crumbling Showa-era dwellings. The doors are typically closed, and the rooms are shut. The other side cannot be penetrated by the viewer, making the pictures, even when they are outside, closed. Some models play to the camera, other don’t. These are private moments, though, and the viewer is a fly on the wall – or door. Tropes that commonly appear in anime, manga, and video games populate the pictures. Some of the girls are wearing schoolbags or carrying phallic recorders and school notebooks. Some of the girls are in school uniforms. Others are dressed like female office workers and even have wear worker name badges around their necks. In Japan, where clothes were traditionally used to mark class and status, these are all identifiers and are used to provide enough information for the viewer to finish the story, making them as an essential part of the narrative. All of these items are meaningless alone. It’s the viewer, informed by popular culture like anime, TV, and games as well as real life, that gives them meaning”.

The photos appeared on Tumblr and featured Ehara herself. (You can have a look at the Tumblr photographs here). Following the viral success of the original photographs, Azuma and Ehara hired and photographed a number of models with their mouths on doorknobs and licking them. As the article in Kotaku noted:

The photos depict a variety of young girls (shojo) with their mouths and tongues touching doorknobs. The imagery is sexually charged. Doorknobs are ubiquitous and common, bland and banal. Intrinsically, doorknobs are not sexual objects in the same way that, say, a banana is. Yet, their position on a door, require the girls to kneel and by placing their mouths on the knobs. It’s undeniably submissive. A doorknob is not necessarily a sexual object. Its purpose is to open doors. Licking is not only a sexual act. Its purpose is to taste. The juxtaposition comes across as titillation and provocative, designed to elicit a response. The photos might look submissive, or exploitive, but they confront the viewer, asking the question, ‘What do you see?’ The pictures can dominate and even exploit the viewer’s notions of foreplay. The photos are psychosexual, with the viewer, if he or she so chooses, filling in the blanks and replacing the boring with the sensual. For such a commonplace object, the doorknob is a perfect phallic symbol. Like [penises], doorknobs come in a variety of shapes and sizes, from short and fat to long and thin. And like [penises], doorknobs can transmit diseases”.

It’s hard to assess who accesses and enjoys such photos and I know of no non-Japanese sites that have featured such models. I’ll leave you with a quote from Azuma himself who claims that it is up to the person viewing to interpret his art:

“Basically, we shot whatever doorknobs were at the location. But just in case, I always carried a backup knob with me to switch out. I always think a work is completed by the viewer. So whatever the viewer brings to the work is sufficient…Many people feel like the photos are a metaphor for oral sex, but we’re not especially taking the photos with that in mind. See whatever you want to see”.

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

Further reading

Art-Sheep (2015). “Doorknob girl”: Japan and the trend of girls licking doorknobs. August 17. Located at: http://art-sheep.com/doorknob-girl-japan-and-the-trend-of-girls-licking-doorknobs/

Ashcraft, B. (2011). The art of girls licking doorknobs. Kotaku, August 9. Located at: http://kotaku.com/5838276/the-art-of-girls-licking-doorknobs/

The Chive (2015). Leave it to Japan to create the weirdest trend EVER. May 1. Located at: http://thechive.com/2012/01/05/leave-it-to-japan-to-create-the-weirdest-trend-ever-35-photos/

Ntumy, E.K. (2013). The 6 most bizarre safe for work fetishes. Cracked, November 2. Located at: http://www.cracked.com/article_20691_the-6-most-bizarre-safe-work-fetishes.html

Pam (2012). Crazy Japanese trends – Hard to resist? Imperfect Women, March 1. Located at: http://imperfectwomen.com/crazy-japanese-trends-–-hard-to-resist/

Sumitra (2012). Girls licking doorknobs – more madness from Japan. Oddity Central, January 13. Located at: http://www.odditycentral.com/pics/girls-licking-doorknobs-more-madness-from-japan.html

Games without frontiers: A brief look at the psychology of play

In a previous blog I examined my favourite board game (Scrabble) and the extent to which someone could become addicted to it. Today’s blog takes a broader look at the psychology of play more generally. Arguably, many of the topics that I research involve the psychology of playing games with video games and gambling games being my two most obvious areas of interest.

It’s been argued by myself (and others) that the ritualized play of several childhood games provides ‘training’ in the acquisition of gambling behaviour and that some games are pre-cursors to actual gambling (e.g., playing marbles, card flipping, etc.). Some authors (such as Igor Kusyszyn) hold the view that gambling is in itself ‘adult play’. Unsurprisingly, Freud was one of the first people to concentrate on the ‘functions’ of play and concluded that play in all its varieties (a) provides a wish-fulfilment, (b) leads to conflict reduction, (c) provides temporary leave of absence from reality, and (d) brings about a change from the passive to the active.

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Since Freud, most psychologists have concentrated on the idea of ‘conflict reduction’ and in doing so have ignored his other three postulations. A more modern approach in the 1970s by Mihalyi Czikszentmihalyi asserted that during play a person can “concentrate on a limited stimulus field, in which he or she can use skills to meet clear demands, thereby forgetting his or her own problems and separate identity” (and provides one of the reasons that a small minority of people can develop problems playing games). Seminal research on the sociology of play by Roger Caillois states notes that play is a “free and voluntary activity”, “a source of joy and amusement” and “bounded by precise limits of time and space” whereas Erving Goffman views it as a “world building activity”.

Games provide the opportunity to prove one’s superiority, the desire to challenge and overcome an obstacle, and a medium by which to test one’s skill, endurance and ingenuity. Games, unlike some activities (including life itself!), tell us whether we have won or lost. As observed by James Smith and Vicki Abt in the 1980s:

“…in the context of a competitive and materialistic culture that has become increasingly regimented and standardized with little room for individual creativity and personal achievement, games (including gambling) offer the illusion of control over destiny and circumstance”.

Perhaps the best categorisation of game types was formulated by Roger Caillois who listed four classifications – agon (competition), alea (chance), mimicry (simulation), and ilinx (vertigo). In the context of games involving gambling, alea and agon are crucial in that they offer a combination of skill, chance and luck. As was previously asserted, most people desire opportunities to test their strength and skill against an adversary, and those games which offer a component of skill or talent combined with luck and chance provide the most favourable conditions. This is particularly prevalent in males who are deemed ‘masculine’ if during the socialization process they show (socially) important traits such as courage, independence, and bravery.

According to Caillois, play is “an occasion of pure waste: waste of time, energy, ingenuity, skill, and often of money” and is a “free and voluntary activity that occurs in a pure space, isolated and protected from the rest of life”. According to Caillois, play is best described by six core characteristics:

  • It is free, or not obligatory.
  • It is separate (from the routine of life) occupying its own time and space.
  • It is uncertain, so that the results of play cannot be pre-determined and so that the player’s initiative is involved.
  • It is unproductive in that it creates no wealth and ends as it begins.
  • It is governed by rules that suspend ordinary laws and behaviours and that must be followed by players.
  • It involves make-believe that confirms for players the existence of imagined realities that may be set against ‘real life’.

Back in 2000, I published an article on the psychology of games in Psychology Review and what makes a good game. I noted that:

  • All good games are relatively easy to play but can take a lifetime to become truly adept. In short, there will always room for improvement.
  • For games of any complexity there must be a bibliography that people can reference and consult. Without books and magazines to instruct and provide information there will be no development and the activity will die.
  • There needs to be competitions and tournaments. Without somewhere to play (and likeminded people to play with) there will be little development within the field over long periods of time.
  • Finally – and very much a sign of the times – no leisure activity can succeed today without corporate sponsorship of some kind.

I was recently interviewed by Lucy Orr for an article on board games for The Register – particularly about the psychology of winning. For instance, why is winning so important? I responded to Orr by pointing out that winning makes us feel good both psychologically and physiologically. Winning something – especially if it is a result of something skilful rather than by chance – can feel even better (unless the chance winning is something life changing like winning the lottery). Winning something using your own skill can demand respect from other competitors and brings about esteem (that can feed into one’s own self-esteem). Winning can be a validation that what you are doing is worthwhile. Other parts of my interview were not used.

I was asked whether beating other people makes winning more rewarding? Of course it does. Any time we engage in a behaviour that feels good we want to do it again (and again). Winning can be reinforcing on many different levels. There may be financial rewards, social rewards (peer praise, admiration and respect from others), psychological rewards (feeling better about oneself and feeling that the activity is a life-affirming and life-enhancing activity that feeds into self-esteem), and physiological rewards (increases in adrenaline and serotonin that trigger dopamine and makes us feel happy).

For some people, winning can become addictive. You can’t become addicted to something unless you are constantly reinforced and rewarded for engaging in the behaviour, and (as mentioned above) there are many different types of rewards (e.g., financial, social, psychological and physiological). Any (or all of these) could lead to repetitive and habitual behaviour and in a small minority of cases be addictive. However, as I have noted in a number of my papers, doing something to excess is not addiction. The difference between a healthy excessive enthusiasm and an addiction is that excessive enthusiasms add to life and addictions take away from it. For most people, winning behaviour – particularly in the context of playing board games – will be highly rewarding without being in any way problematic

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

Further reading

Brown, J. (2011). Scrabble addict. Sabotage Times, May 16. Located at: http://sabotagetimes.com/life/scrabble-addict/

Caillois, R. (1961). Man, play and games. Paris: Simon and Schuster.

Csikszentmihalyi, M. (1976). Play and intrinsic rewards. Journal of Humanistic Psychology, 16, 41-63.

Goffman, E. (1967). Interaction Ritual: Essays on face-to-face behavior. Garden City, New York: Doubleday Anchor.

Griffiths, M.D. (2000). The psychology of games. Psychology Review, 7(2), 24-26.

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

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.

Kusyszyn, I. (1984). The psychology of gambling. Annals of American Academy of Political and Social Sciences, 474, 133-145.

Orr, L. (2016). Winner! Crush your loved ones at Connect Four this Christmas. The Register, December 16. Located at: http://www.theregister.co.uk/2016/12/15/beating_your_family_and_winning_this_christmas/

Smith, J. F. & Abt, V. (1984). Gambling as play Annals of the American Academy of Political and Social Sciences, 474, 122-132.

Walsh, J. (2004). Scrabble addicts. The Independent, October 9. Located at: http://www.independent.co.uk/news/uk/this-britain/scrabble-addicts-535160.html

Fun in the sun? Does ‘tanorexia’ (addiction to sunshine) really exist?

If the many media reports are to be believed, a 2014 study published in the journal Cell claimed that “sunshine can be addictive like heroin”. In an experiment carried out on mice, a research team led by Dr. Gillian Fell at the Harvard Medical School in Boston (US) reported that ultraviolet exposure leads to elevated endorphin levels (endorphins being the body’s own ‘feel good’ endogenous morphine), that mice experience withdrawal effects after exposure to ultraviolet light, and that chronic ultraviolet causes dependency and ‘addiction-like’ behaviour.

Although the study was carried out on animals, the authors speculated that their findings may help to explain why we love lying in the sun and that in addition to topping up our tans, sunbathing may be the most natural way to satisfy our cravings for a ‘sunshine fix’ in the same way that drug addicts yearn for their drug of choice.

Reading the findings of this study took me back to 1998 when I appeared as a ‘behavioural addiction expert’ on Esther Rantzen’s daytime BBC television show that featured people who claimed they were addicted to tanning (and was dubbed by the researchers on the programme as ‘tanorexia’). I have to admit that none of the case studies on the show appeared to be addicted to tanning at least based on my own behavioural addiction criteria (i.e., salience, mood modification, tolerance, withdrawal, conflict, and relapse) but it did at least alert me to the fact that some people thought sunbathing and tanning was addictive (in fact, the people on the show said their excessive tanning was akin to nicotine addiction).

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There certainly appeared to be some similarities between the people interviewed and nicotine addiction in the sense that the ‘tanorexics’ knew they were significantly increasing their chances of getting skin cancer as a direct result of their risky behaviour but felt they were unable to stop doing it (similar to nicotine addicts who know they are increasing the probability of various cancers but also feel unable to stop despite knowing the health risks).

Since then, tanorexia has become a topic for scientific investigation (and I looked at the topic in a previous blog). For instance, in a 2006 study published in the Journal of the American Academy of Dermatology by Dr. Mandeep Kaur and colleagues reported that frequent tanners (those who tanned 8-15 times a month) that took an endorphin blocker normally used to treat drug addictions (i.e., naltrexone) significantly reduced the amount of tanning compared to a control group of light tanners.

A 2005 study published in the Archives of Dermatology by Dr. Molly Warthan and colleagues claimed that a quarter of the sample of 145 “sun worshippers” would qualify as having a substance-related disorder if ultraviolet light was classed as the substance they crave. Their paper also reported that frequent tanners experienced a “loss of control” over their tanning schedule, and displayed a pattern of addiction similar to smokers and alcoholics.

A 2008 study published in the American Journal of Health Behavior by Dr. Carolyn Heckman and colleagues reported that 27% of 400 students they surveyed were classified as “tanning dependent”. The authors claimed that those classed as being tanning dependent had a number of similarities to substance use, including (i) higher prevalence among youth, (ii) an initial perception that the behaviour is image enhancing, (iii) high health risks and disregard for warnings about those risks, and (iv) the activity being mood enhancing.

Another study by Dr. Heckman and her colleagues in the American Journal of Health Promotion surveyed 306 female students and classed 25% of the respondents as ‘tanning dependent’ based upon a self-devised tanning dependence questionnaire. The problem with this and most of the psychological research on tanorexia to date is that almost all of the research is carried out on relatively small convenience samples using self-report and non-psychometrically validated ‘tanning addiction’ instruments.

Based on my own six criteria of behavioural addiction although some studies suggest some of these criteria appear to have been met, I have yet to be convinced that any of the published studies to date show genuine addiction to tanning (i.e., that there is evidence of all my criteria being endorsed) but that doesn’t mean it’s not theoretically possible. However, I’ve just done a study on tanorexia with my research colleagues at the University of Bergen and when we publish our findings I’ll be sure to let my blog readers know about it.

(Please note: A version of this article first appeared in The Conversation and The Washington Post)

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

Further reading

Fell, G.L., Robinson, K.C., Mao, J., Woolf, C.J., & Fisher, D.E. (2014). Skin β-endorphin mediates addiction to UV light. Cell, 157(7), 1527-1534.

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

Griffiths, M.D. (2014). Sunshine addiction is a hot topic – but does ‘tanorexia’ really exist? The Conversation. June 20. Located at: https://theconversation.com/sunshine-addiction-is-a-hot-topic-but-does-tanorexia-really-exist-28283

Griffiths, M.D. (2014). Sunshine: As addictive as heroin? Washington Post. June 24. Located at http://www.washingtonpost.com/posteverything/wp/2014/06/24/sunshine-as-addictive-as-heroin/

Heckman, C.J., Cohen-Filipic, J., Darlow, S., Kloss, J.D., Manne, S.L., & Munshi, T. (2014). Psychiatric and addictive symptoms of young adult female indoor tanners. American Journal of Health Promotion, 28(3), 168-174.

Heckman, C.J., Darlow, S., Kloss, J.D., Cohen‐Filipic, J., Manne, S.L., Munshi, T., … & Perlis, C. (2014). Measurement of tanning dependence. Journal of the European Academy of Dermatology and Venereology, 28(9), 1179-1185 .

Heckman, C.J., Egleston, B.L., Wilson, D.B., & Ingersoll, K.S. (2008). A preliminary investigation of the predictors of tanning dependence. American Journal of Health Behavior, 32(5), 451-464.

Kaur, M., Liguori, A., Lang, W., Rapp, S.R., Fleischer, A.B., & Feldman, S.R. (2006). Induction of withdrawal-like symptoms in a small randomized, controlled trial of opioid blockade in frequent tanners. Journal of the American Academy of Dermatology, 54(4), 709-711.

Warthan, M.M., Uchida, T., & Wagner, R.F. (2005). UV light tanning as a type of substance-related disorder. Archives of Dermatology, 141(8), 963-966.

A diction for addiction: A brief overview of our papers at the 2017 International Conference on Behavioral Addictions

This week I attended (and gave one of the keynote papers at) the fourth International Conference on Behavioral Addictions in Haifa (Israel). It was a great conference and I was accompanied by five of my colleagues from Nottingham Trent University all of who were also giving papers. All of the conference abstracts have just been published in the latest issue of the Journal of Behavioral Addictions (reprinted below in today’s blog) and if you would like copies of the presentations then do get in touch with me.

mark-haifa-keynote-2017

Griffiths, M.D. (2017). Behavioural tracking in gambling: Implications for responsible gambling, player protection, and harm minimization. Journal of Behavioral Addictions, 6 (Supplement 1), 2.

  • Social responsibility, responsible gambling, player protection, and harm minimization in gambling have become major issues for both researchers in the gambling studies field and the gaming industry. This has been coupled with the rise of behavioural tracking technologies that allow companies to track every behavioural decision and action made by gamblers on online gambling sites, slot machines, and/or any type of gambling that utilizes player cards. This paper has a number of distinct but related aims including: (i) a brief overview of behavioural tracking technologies accompanied by a critique of both advantages and disadvantages of such technologies for both the gaming industry and researchers; (ii) results from a series of studies carried out using behavioural tracking (particularly in relation to data concerning the use of social responsibility initiatives such as limit setting, pop-up messaging, and behavioural feedback); and (c) a brief overview of the behavioural tracking tool mentor that provides detailed help and feedback to players based on their actual gambling behaviour.

Calado, F., Alexandre, J. & Griffiths, M.D. (2017). Youth problem gambling: A cross-cultural study between Portuguese and English youth. Journal of Behavioral Addictions, 6 (Supplement 1), 7.

  • Background and aims: In spite of age prohibitions, most re- search suggests that a large proportion of adolescents engage in gambling, with a rate of problem gambling significantly higher than adults. There is some evidence suggesting that there are some cultural variables that might explain the development of gambling behaviours among this age group. However, cross­cultural studies on this field are generally lacking. This study aimed to test a model in which individual and family variables are integrated into a single perspective as predictors of youth gambling behaviour, in two different contexts (i.e., Portugal and England). Methods: A total of 1,137 adolescents and young adults (552 Portuguese and 585 English) were surveyed on the measures of problem gambling, gambling frequency, sensation seeking, parental attachment, and cognitive distortions. Results: The results of this study revealed that in both Portuguese and English youth, the most played gambling activities were scratch cards, sports betting, and lotteries. With regard to problem gambling prevalence, English youth showed a higher prevalence of problem gambling. The findings of this study also revealed that sensation seeking was a common predictor in both samples. However, there were some differences on the other predictors be- tween the two samples. Conclusions: The findings of this study suggest that youth problem gambling and its risk factors appear to be influenced by the cultural context and highlights the need to conduct more cross-cultural studies on this field.

Demetrovics, Z., Richman, M., Hende, B., Blum, K., Griffiths,
M.D, Magi, A., Király, O., Barta, C. & Urbán, R. (2017). Reward Deficiency Syndrome Questionnaire (RDSQ):
A new tool to assess the psychological features of reward deficiency. Journal of Behavioral Addictions, 6 (Supplement 1), 11.

  • ‘Reward Deficiency Syndrome’ (RDS) is a theory assuming that specific individuals do not reach a satisfactory state of reward due to the functioning of their hypodopaminergic reward system. For this reason, these people search for further rewarding stimuli in order to stimulate their central reward system (i.e., extreme sports, hypersexuality, substance use and/or other addictive behaviors such as gambling, gaming, etc.). Beside the growing genetic and neurobiological evidence regarding the existence of RDS little re- search has been done over the past two decades on the psychological processes behind this phenomenon. The aim of the present paper is to provide a psychological description of RDS as well as to present the development of the Reward Deficiency Syndrome Questionnaire (developed using a sample of 1,726 participants), a new four-factor instrument assessing the different aspects of reward deficiency. The results indicate that four specific factors contribute to RDS comprise “lack of satisfaction”, “risk seeking behaviors”, “need for being in action”, and “search for overstimulation”. The paper also provides psychological evidence of the association between reward deficiency and addictive disorders. The findings demonstrate that the concept of RDS provides a meaningful and theoretical useful context to the understanding of behavioral addictions.

Demetrovics, Z., Bothe, B., Diaz, J.R., Rahimi­Movaghar, A., Lukavska, K., Hrabec, O., Miovsky, M., Billieux, J., Deleuze,
J., Nuyens, P. Karila, L., Nagygyörgy, K., Griffiths, M.D. & Király, O. (2017). Ten-Item Internet Gaming Disorder Test (IGDT-10): Psychometric properties across seven language-based samples. Journal of Behavioral Addictions, 6 (Supplement 1), 11.

  • Background and aims: The Ten-Item Internet Gaming Disorder Test (IGDT-10) is a brief instrument developed to assess Internet Gaming Disorder as proposed in the DSM­5. The first psychometric analyses carried out among a large sample of Hungarian online gamers demonstrated that the IGDT-10 is a valid and reliable instrument. The present study aimed to test the psychometric properties in a large cross-cultural sample. Methods: Data were collected among Hungarian (n = 5222), Iranian (n = 791), Norwegian (n = 195), Czech (n = 503), Peruvian (n = 804), French­speaking (n = 425) and English­ speaking (n = 769) online gamers through gaming­related websites and gaming-related social networking site groups. Results: Confirmatory factor analysis was applied to test the dimensionality of the IGDT-10. Results showed that the theoretically chosen one-factor structure yielded appropriate to the data in all language­based subsamples. In addition, results indicated measurement invariance across all language-based subgroups and across gen- der in the total sample. Reliability indicators (i.e., Cronbach’s alpha, Guttman’s Lambda-2, and composite reliability) were acceptable in all subgroups. The IGDT- 10 had a strong positive association with the Problematic Online Gaming Questionnaire and was positively and moderately related to psychopathological symptoms, impulsivity and weekly game time supporting the construct validity of the instrument. Conclusions: Due to its satisfactory psychometric characteristics, the IGDT-10 appears to be an adequate tool for the assessment of internet gam- ing disorder as proposed in the DSM-5.

Throuvala, M.A., Kuss, D.J., Rennoldson, M. & Griffiths, M.D. (2017). Delivering school-based prevention regarding digital use for adolescents: A systematic review in the UK. Journal of Behavioral Addictions, 6 (Supplement 1), 54.

  • Background: To date, the evidence base for school-delivered prevention programs for positive digital citizenship for adolescents is limited to internet safety programs. Despite the inclusion of Internet Gaming Disorder (IGD) as a pro- visional disorder in the DSM-5, with arguable worrying prevalence rates for problematic gaming across countries, and a growing societal concern over adolescents’ digital use, no scientifically designed digital citizenship programs have been delivered yet, addressing positive internet use among adolescents. Methods: A systematic database search of quantitative and qualitative research evidence followed by a search for governmental initiatives and policies, as well as, non­profit organizations’ websites and reports was conducted to evaluate if any systematic needs assessment and/or evidence-based, school delivered prevention or intervention programs have been conducted in the UK, targeting positive internet use in adolescent populations. Results: Limited evidence was found for school-based digital citizenship awareness programs and those that were identified mainly focused on the areas of internet safety and cyber bullying. To the authors’ knowledge, no systematic needs assessment has been conducted to assess the needs of relevant stakeholders (e.g., students, parents, schools), and no prevention program has taken place within UK school context to address mindful and positive digital consumption, with the exception of few nascent efforts by non­profit organizations that require systematic evaluation. Conclusions: There is a lack of systematic research in the design and delivery of school-delivered, evidence-based prevention and intervention programs in the UK that endorse more mindful, reflective attitudes that will aid adolescents in adopting healthier internet use habits across their lifetime. Research suggests that adolescence is the highest risk group for the development of internet addictions, with the highest internet usage rates of all age groups. Additionally, the inclusion of IGD in the DSM-5 as provisional disorder, the debatable alarming prevalence rates for problematic gaming and the growing societal focus on adolescents’ internet misuse, renders the review of relevant grey and published research timely, contributing to the development of digital citizenship programs that might effectively promote healthy internet use amongst adolescents.

Bányai, F., Zsila, A., Király, O., Maraz, A., Elekes, Z., Griffiths, M.D., Andreassen, C.S. & Demetrovics, Z. (2017). Problematic social networking sites use among adolescents: A national representative study. Journal of Behavioral Addictions, 6 (Supplement 1), 62.

  • Despite being one of the most popular activities among adolescents nowadays, robust measures of Social Media use and representative prevalence estimates are lacking in the field. N = 5961 adolescents (49.2% male; mean age 16.6 years) completed our survey. Results showed that the one-factor Bergen Social Media Addiction Scale (BSMAS) has appropriate psychometric properties. Based on latent pro le analysis, 4.5% of the adolescents belonged to the at-risk group, who reported low self-esteem, high level of depression and the elevated social media use (34+ hours a week). Conclusively, BSMAS is an adequate measure to identify those adolescents who are at risk of problematic Social Media use and should therefore be targeted by school-based prevention and intervention programs.

Bothe, B., Toth-Király, I. Zsila, A., Griffiths, M.D., Demetrovics, Z. & Orosz, G. (2017). The six-component problematic pornography consumption scale. Journal of Behavioral Addictions, 6 (Supplement 1), 62.

  • Background and aims: To our best knowledge, no scale ex- ists with strong psychometric properties assessing problematic pornography consumption which is based on an over- arching theoretical background. The goal of the present study was to develop a short scale (Problematic Pornography Consumption Scale; PPCS) on the basis of Griffiths` (2005) six-component addiction model that can assess problematic pornography consumption. Methods: The sample comprised 772 respondents (390 females; Mage = 22.56, SD = 4.98 years). Items creation was based on the definitions of the components of Griffiths’ model. Results: A confirmatory factor analysis was carried out leading to an 18­item second­order factor structure. The reliability of the PPCS was good and measurement invariance was established. Considering the sensitivity and specificity values, we identified an optimal cut­off to distinguish between problematic and non-problematic pornography users. In the present sample, 3.6% of the pornography consumers be- longed to the at-risk group. Discussion and Conclusion: The PPCS is a multidimensional scale of problematic pornography consumption with strong theoretical background that also has strong psychometric properties.

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