Expressing Gambling-Related Cognitive Biases in Motor Behaviour: Rolling Dice to Win Prizes

Cognitive perspectives on gambling propose that biased thinking plays a significant role in sustaining gambling participation and, in vulnerable individuals, gambling problems. One prominent set of cognitive biases include illusions of control involving beliefs that it is possible to influence random gaming events. Sociologists have reported that (some) gamblers believe that it is possible to throw dice in different ways to achieve gaming outcomes (e.g., ‘dice-setting’ in craps). However, experimental demonstrations of these phenomena are lacking. Here, we asked regular gamblers to roll a computer-simulated, but fair, 6 sided die for monetary prizes. Gamblers allowed the die to roll for longer when attempting to win higher value bets, and when attempting to hit high winning numbers. This behaviour was exaggerated in gamblers motivated to keep gambling following the experience of almost-winning in gambling games. These results suggest that gambling cognitive biases find expression in the motor behaviour of rolling dice for monetary prizes, possibly reflecting embodied substrates.     

Voluntary Limit Setting and Player Choice in Most Intense Online Gamblers: An Empirical Study of Gambling Behaviour

Social responsibility in gambling has become a major issue for the gaming industry. The possibility for online gamblers to set voluntary time and money limits are a social responsibility practice that is now widespread among online gaming operators. The main issue concerns whether the voluntary setting of such limits has any positive impact on subsequent gambling behaviour and whether such measures are of help to problem gamblers. In this paper, this issue is examined through data collected from a representative random sample of 100,000 players who gambled on the win2day gambling website. When opening an account at the win2day site, there is a mandatory requirement for all players to set time and cash-in limits (that cannot exceed 800 € per week). During a 3-month period, all voluntary time and/or money limit setting behaviour by a subsample of online gamblers (n = 5,000) within this mandatory framework was tracked and recorded for subsequent data analysis. From the 5,000 gamblers, the 10 % most intense players (as measured by theoretical loss) were further investigated. Voluntary spending limits had the highest significant effect on subsequent monetary spending among casino and lottery gamblers. Monetary spending among poker players significantly decreased after setting a voluntary time limit. The highest significant decrease in playing duration was among poker players after setting a voluntary playing duration limit. The results of the study demonstrated that voluntary limit setting had a specific and significant effect on the studied gamblers. Therefore, voluntary limits appear to show an appropriate effect in the desired target group (i.e., the most gaming intense players).     

Facilitating Responsible Gambling: The Relative Effectiveness of Education-Based Animation and Monetary Limit Setting Pop-up Messages Among Electronic Gaming Machine Players

Although most gamblers set a monetary limit on their play, many exceed this limit—an antecedent of problematic gambling. Responsible gambling tools may assist players to gamble within their means. Historically, however, the impact of such tools has been assessed in isolation. In the current research, two responsible gambling tools that target adherence to a monetary limit were assessed among 72 electronic gaming machine (EGM) players. Participants watched an educational animation explaining how EGMs work (or a neutral video) and then played an EGM in a virtual reality environment. All participants were asked to set a monetary limit on their play, but only half were reminded when that limit was reached. Results showed that both the animation and pop-up limit reminder helped gamblers stay within their preset monetary limit; however, an interaction qualified these main effects. Among participants who did not experience the pop-up reminder, those who watched the animation stayed within their preset monetary limits more than those who did not watch the animation. For those who were reminded of their limit, however, there was no difference in limit adherence between those who watched the animation and those who did not watch the animation. From a responsible gambling perspective, the current study suggests that there is no additive effect of exposure to both responsible gambling tools. Therefore, for minimal disruption in play, a pop-up message reminding gamblers of their preset monetary limit might be preferred over the lengthier educational animation.     

An Empirical Investigation of Theoretical Loss and Gambling Intensity

Many recent studies of internet gambling—particularly those that have analysed behavioural tracking data—have used variables such ‘bet size’ and ‘number of games played’ as proxy measures for ‘gambling intensity’. In this paper it is argued that the most stable and reliable measure for ‘gambling intensity’ is the ‘theoretical loss’ (a product of total bet size and house advantage). In the long run, the theoretical loss corresponds with the Gross Gaming Revenue generated by commercial gaming operators. For shorter periods of time, theoretical loss is the most stable measure of gambling intensity as it is not distorted by gamblers’ occasional wins. Even for single bets, the theoretical loss reflects the amount a player is willing to risk. Using behavioural tracking data of 100,000 players who played online casino, lottery and/or poker games, this paper also demonstrates that bet size does not equate to or explain theoretical loss as it does not take into account the house advantage. This lack of accuracy is shown to be even more pronounced for gamblers who play a variety of games.     

Effects of accuracy feedback versus monetary contingency on arousal in high and low frequency gamblers

This study examined the effects on arousal of feedback regarding prediction accuracy without monetary gain or loss versus accuracy feedback combined with monetary contingency involved in most gambling. Physiological and subjective arousal was assessed in frequent (n = 35; 16 females) and infrequent gamblers (n = 35; 16 females) during participation in a laboratory gambling game. Both samples consisted of undergraduate student volunteers. In one condition, subjects gambled money on their predictions about a sequence of events, hence receiving both feedback and monetary outcome. In the other condition, only feedback about accuracy was provided, with no money wagered. Arousal was greater for both groups during actual gambling than in the feedback only condition. Across both conditions, frequent gamblers exhibited greater arousal than did infrequent gamblers. There were, however, no significant Group X Condition interactions. These results suggest that actual monetary contingency rather than accuracy feedback alone is most motivating in gambling. Methodological limitations possibly related to the lack of Group X Condition interactions were discussed.     

Hitting the jackpot: the influence of monetary payout on gambling behaviour

Restrictions on monetary payout may promote player engagement in gambling as a form of entertainment rather than as a source of income. Our objective was to evaluate the effects of monetary prize magnitude upon gambling behaviour in a community sample, and the degree to which this association is moderated by gambling risk factors. One hundred and eighty-seven adults completed an online survey assessing motivation, impulsivity and affect. Participants were given a series of vignettes and asked to estimate how much they would gamble to win monetary prizes of increasing amounts with and without accrued gambling debt. Participants reported increased gambling in response to increased monetary payout. Debt moderated these outcomes, such that electronic gaming machine (EGM) and lottery expenditures and number of lottery games played decreased with increased debt; this effect was most pronounced at elevated monetary prizes. The association between duration of EGM play and monetary payout was moderated by gender only. Results suggest that self-reported gambling behaviours increased with monetary payout even across qualitatively different gambling products, and across gamblers with different motivations for gambling, levels of impulsivity, and negative affect. The restriction of monetary payouts warrants further research attention as a form of problem gambling prevention.     

An Initial Investigation of Individual Rate-of-Play Preferences and Associations with EGM Gambling Behavior

Electronic gambling machines (EGMs) show a strong association with gambling problems. The high speed of gaming offered by modern EGMs allows playing numerous games in a short span of time, which is thought to contribute to attentional distraction, increased spending and prolonged play. However, the relationship between EGM speeds and potentially risk-related gambling behavior remains unclear. We introduce a novel approach to investigating the role of gaming speed in EGM gambling behavior by examining ‘individual rate-of-play’ (I-ROP) during simulated EGM gambling. A community sample of male regular gamblers (N = 72) played virtual slot machines in pairs offering sequentially adjusted game speeds towards the estimation of a behaviorally expressed preference speed, or I-ROP. This initial experiment aimed to explore the variability of I-ROPs during simulated EGM gambling, and examine behavior while playing EGMs at speeds relative to their I-ROP. Estimated I-ROPs ranged from less than one half second to over seven seconds and were negatively associated with cognitive ability, but not related to problem gambling severity, impulsiveness, or gambling-related cognitions. Subsequent gambling sessions on EGMs offering individually calibrated faster and slower gaming speeds were associated with greater and reduced risk-related gambling behaviors respectively. I-ROPs represent a potentially informative construct for exploring influences of gaming speed on gambling behavior, and may lend insight into potential risk-related behavior an individual vulnerability with respect to commercially available EGMs that warrants additional research.     

Risk Factors for Gambling Problems: An Analysis by Gender

Differences in problem gambling rates between males and females suggest that associated risk factors vary by gender. Previous combined analyses of male and female gambling may have obscured these distinctions. This study aimed to develop separate risk factor models for gambling problems for males and for females, and identify gender-based similarities and differences. It analysed data from the largest prevalence study in Victoria Australia (N = 15,000). Analyses determined factors differentiating non-problem from at-risk gamblers separately for women and men, then compared genders using interaction terms. Separate multivariate analyses determined significant results when controlling for all others. Variables included demographics, gambling behaviour, gambling motivations, money management, and mental and physical health. Significant predictors of at-risk status amongst female gamblers included: 18–24 years old, not speaking English at home, living in a group household, unemployed or not in the workforce, gambling on private betting, electronic gaming machines (EGMs), scratch tickets or bingo, and gambling for reasons other than social reasons, to win money or for general entertainment. For males, risk factors included: 18–24 years old, not speaking English at home, low education, living in a group household, unemployed or not in the workforce, gambling on EGMs, table games, races, sports or lotteries, and gambling for reasons other than social reasons, to win money or for general entertainment. High risk groups requiring appropriate interventions comprise young adults, especially males; middle-aged female EGM gamblers; non-English speaking populations; frequent EGM, table games, race and sports gamblers; and gamblers motivated by escape.     

Do Simulated Gambling Activities Predict Gambling with Real Money During Adolescence? Empirical Findings from a Longitudinal Study

As technology has developed, the international gambling market has changed markedly in recent years. The supply of internet-based gambling opportunities has become ever more significant. At the same time, the introduction of new gambling opportunities always brings a demand for evidence-based scientific evaluation, with regard to the associated risks of addiction. Simulated internet gambling, which is the focus of this study, represents a relatively new product group located at the interface between gambling and computer gaming. Concerns have been raised in scientific literature, especially with regard to the adolescent age group, as to whether participation in simulated internet gambling directly promotes recruitment to the world of monetary gambling, as defined in the gateway hypothesis. The research design was based on a standardized, representative longitudinal survey (over a 1-year period) with a total of 1178 school pupils from Northern Germany (M = 13.6 years; 47.5% male). It must be borne in mind that 12% of the adolescents belonged to the subgroup of “onset gamblers” and first reported experience with monetary gambling at the second stage of surveying. Logistic regression analysis demonstrates that this migration process is fostered by (1) participation from home in simulated gambling on social networks and (2) significant exposure to advertising (relating to both simulated and monetary gambling). Within the subgroup of simulated internet gamblers, variables such as particular patterns of use (including breadth and depth of involvement with simulated internet gambling, certain motives for participation, and microtransactions) do not serve as significant predictors. Despite this, important needs for action for the purposes of prevention and research can be identified.     

The Association Between Loneliness, Social Isolation and Women's Electronic Gaming Machine Gambling

Since the introduction of electronic gaming machines (EGMs) in Victoria, Australia, the visibility of women as gamblers has greatly increased, yet few researchers have explored female gambling patterns and motives. An exception was a study by Brown and Coventry (1997), involving a phone-in of women with gambling problems, and analysis of gambling support service data. Results led the authors to suggest that the most common motivations for women gambling were boredom, loneliness and isolation. The current research assessed this claim through a comparative study of female EGM gamblers and non-gamblers, matched for age and education and drawn from the same geographic location. Data indicated that gambling women in general (N = 38) did not report higher levels of loneliness or social isolation than non-gambling women (N = 57). However, the sub-group of women classified though the South Oaks Gambling Screen as having gambling problems (N = 18) were significantly more lonely (in the sense of alienated rather than friendless or isolated) than the rest of the sample, including both non-gamblers and those who gambled but experienced only minor, or no problems with this activity. Problem gambling women were also more likely to be involved in social networks for which gambling was normative. The study is suggestive of loneliness (or alienation) as either a consequence or a vulnerability factor for problem gambling, but a longitudinal research design would be needed to clarify this issue.     

How Do Gamblers End Gambling: Longitudinal Analysis of Internet Gambling Behaviors Prior to Account Closure Due to Gambling Related Problems

Objective: To examine behavioral patterns of actual Internet gamblers who experienced gambling-related problems and voluntarily closed their accounts. Design: A nested case–control design was used to compare gamblers who closed their accounts because of gambling problems to those who maintained open accounts. Setting: Actual play patterns of in vivo Internet gamblers who subscribed to an Internet gambling site. Participants: 226 gamblers who closed accounts due to gambling problems were selected from a cohort of 47,603 Internet gamblers who subscribed to an Internet gambling site during February 2005; 226 matched-case controls were selected from the group of gamblers who did not close their accounts. Daily aggregates of behavioral data were collected during an 18-month study period. Main outcome measures: Main outcomes of interest were daily aggregates of stake, odds, and net loss, which were standardized by the daily aggregate number of bets. We also examined the number of bets to measure trajectory of gambling frequency. Results: Account closers due to gambling problems experienced increasing monetary loss as the time to closure approached; they also increased their stake per bet. Yet they did not chase longer odds; their choices of wagers were more probabilistically conservative (i.e., short odds) compared with the controls. The changes of monetary involvement and risk preference occurred concurrently during the last few days prior to voluntary closing. Conclusions: Our finding of an involvement-seeking yet risk-averse tendency among self-identified problem gamblers challenges the notion that problem gamblers seek “long odds” during “chasing.”     

Predicting online gambling self-exclusion: an analysis of the performance of supervised machine learning models

As gambling operators become increasingly sophisticated in their analysis of individual gambling behaviour, this study evaluates the potential for using machine learning techniques to identify individuals who used self-exclusion tools out of a sample of 845 online gamblers, based on analysing trends in their gambling behaviour. Being able to identify other gamblers whose behaviour is similar to those who decided to use self-exclusion tools could, for instance, be used to share responsible gaming messages or other information that aids self-aware gambling and reduces the risk of adverse outcomes. However, operators need to understand how accurate models can be and which techniques work well. The purpose of the article is to identify the most accurate technique out of four highly diverse techniques and to discuss how to deal analytically and practically with a rare event like self-exclusion, which was used by fewer than 1% of gamblers in our data-set. We conclude that balanced training data-sets are necessary for creating effective models and that, on our data-set, the most effective method is the random forest technique which achieves an accuracy improvement of 35 percentage points versus baseline estimates.     

Reflections on the Voluntary Self-Exclusion of Gamblers and the Law-Suits against Ontario Lottery and Gaming Corporation

Legalized gambling in Canada is governed by Provincial legislation. In Ontario, the Ontario Lottery and Gaming Corporation is responsible for all aspects of gambling in the Province. There have been a number of recent lawsuits against this Crown agency of the Government of Ontario by gamblers, most of which have been settled or otherwise resolved. A recent class-action lawsuit on behalf of thousands of Ontario gamblers against this agency raises a number of interesting questions regarding the issue of responsibility and liability. The questions surround the issue of self-exclusionary practices of gamblers who deem themselves in need of external intervention in order interesting questions regarding the issue of responsibility and liability. The questions surround the issue to abstain from further gambling. A contract is voluntarily signed by the self-excluding gamblers whereby their further attendance at gaming venues is prevented and could be punishable by law. Where the gaming venues have failed to enforce the terms of this contract, gamblers have continued to gamble at these establishments. The class-action lawsuit stems from the grievances of these self-excluded gamblers who were not turned away. Relevant psychological theories and recent findings pertaining to gambling are reviewed and questions relevant to these grievances are discussed in favor of government responsibility and liability toward gamblers.     

Clustering Finnish Gambler Profiles Based on the Money and Time Consumed in Gambling Activities

Gambling involves consumption of gamblers’ money and time. Gamblers are a heterogeneous group, and in addition to grouping gamblers based on personality factors, it is also important to find different gambler profiles with respect to their gambling behavior. Using the nationally representative survey ‘Finnish Gambling 2011’ (N = 4484), this article studies the subtypes of Finnish gamblers based on the frequency of gambling and the amounts of money and time used in different gambling forms. Cluster analysis reveals six profiles of gamblers, from infrequent gamblers to omnivorous gamblers. In the further analysis of the clusters, it was found that the highest problem gambling prevalence was in the groups of sport betting + electronic gaming machine gamblers and omnivorous gamblers, which were also both dominated by men. Certain gambling consumption patterns and risk factors for problem gambling are related to both socio-demographic backgrounds of the gamblers as well as the structural and situational characteristics of the games. The results have implications for the prevention of problem gambling, as some consumption patterns may be connected with the probability of developing gambling problems.     

An Experiment on the Social Facilitation of Gambling Behavior

Research and theory regarding the social facilitation effect generates the expectation that the presence of other gamblers (or co-actors) in a gaming venue is likely to intensify individual gambling behavior and magnify losses. Fifty male and 66 female participants (116 total) played a computer-simulated electronic gaming machine with a fixed winning sequence, followed by an indefinite losing sequence. Measures of the intensity of gambling behavior included the final payout (a direct measure of losses), average bet-size, number of trials played, and the speed of play. Some participants received false feedback from the computer designed to suggest that other gamers in adjacent rooms were playing and sometimes winning at the same game. Persons who received both sight and sound information, including winning bells and instant messages regarding the wins of other (fake) players, placed more bets and lost more money compared to the other conditions with less information.     

Gambling Motivations,Money-Limiting Strategies,and Precommitment Preferences of Problem Versus Non-Problem Gamblers

Studies attempting to identify the specific ‘addictive’ features of electronic gaming machines (EGMs) have yielded largely inconclusive results, suggesting that it is the interaction between a gambler’s cognitions and the machine, rather than the machine itself, which fuels excessive play. Research has reported that machine players with gambling problems adopt a number of erroneous cognitive perceptions regarding the probability of winning and the nature of randomness. What is unknown, however, is whether motivations for gambling and attitudes toward pre-session monetary limit-setting vary across levels of gambling severity, and whether proposed precommitment strategies would be useful in minimizing excessive gambling expenditures. The current study explored these concepts in a sample of 127 adults, ages 18 to 81, attending one of four gambling venues in Queensland, Australia. The study found that problem gamblers were more likely than other gamblers to play machines to earn income or escape their problems rather than for fun and enjoyment. Similarly, they were less likely to endorse any type of monetary limit-setting prior to play. They were also reticent to adopt the use of a ‘smart card’ or other strategy to limit access to money during a session, though they indicated they lost track of money while gambling and were rarely aware of whether they were winning or losing during play. Implications for precommitment policies and further research are discussed.     

Casino Gambling Among Older Adults in North Dakota: A Policy Analysis

This article examined social issues surrounding casino gambling among older adults both nationally and in the state of North Dakota. An exploratory review of gambling trends among older adults and an examination of policies to protect older gamblers revealed that older adults are targeted by the gaming industry as a lucrative market (Singh et al. J Retail Leisure Property 2007, 6(1):61–68). The authors used the national literature to frame their qualitative study, which explored gambling issues among older adults in North Dakota from the perspective of six counselors trained in gambling addiction who provide treatment services in the state. Findings indicated that relatively few policies existed at the state and national levels to protect older, more vulnerable adults who gamble. Further, the six casinos in North Dakota were viewed as very effective in marketing their casino gaming opportunities to older citizens by the gambling treatment providers interviewed. Additionally, barriers to gambling addiction treatment involved lack of available services and distance to receive services in this rural state. Based on the findings of this study, social policy changes which could lead to increased protection for older adult gamblers in the state were included.     

Arousal and Affective Differences Between Student Gamblers and Non-gamblers during a Card Game

The current study examined the differences in arousal (physiologically and subjectively) between gamblers and non-gamblers. Thirty students from a mid-sized university took part in the study for a chance to win money in a gambling task. Nearly half of the participants identified themselves as non-gamblers and slightly more than half of the participants considered themselves gamblers. Findings indicated that gamblers experienced a significantly higher increase in physiological arousal (heart rate) compared to non-gamblers during the gambling experience. The results suggests the possibility that physiological arousal may play a role in the appeal of gambling to certain types of people. Furthermore, when gamblers suffered a loss at the end of the game, they reported feeling worse as compared to the non-gamblers and relative to their state before playing. Moreover, this affective change explained 28.6% of the variance in gambling behavior according to self-reports. Findings suggest that gamblers in our study may have been more personally invested in the gambling tasks, such that losing was more disappointing to the habitual gamblers than the non-gamblers.     

Superstitious Beliefs in Gambling Among Problem and Non-Problem Gamblers: Preliminary Data

Superstitious beliefs, defined as a strong conviction based on the erroneous perception of a cause-effect association between two independent events, are considered to play an instrumental role in the maintenance of gambling behaviour. In this preliminary study, responses to eight items assessing superstitious beliefs were compared among 56 electronic gaming machine (EGM) problem gamblers, 22 non-problem EGM and 23 non-EGM non-problem gamblers. Results suggested that problem gamblers endorsed more superstitious beliefs than non-problem gamblers and that such beliefs were correlated with gambling intensity. Further research is required to determine if superstitious beliefs represent a vulnerability factor for the development of problem gambling or emerge as a consequence of involvement in gambling.     

Predictability in Pathological Gambling? Applying the Duplication of Purchase Law to the Understanding of Cross-Purchases Between Regular and Pathological Gamblers

The objective of this study is to explore the gambling participations and game purchase duplication of light regular, heavy regular and pathological gamblers by applying the Duplication of Purchase Law. Current study uses data collected by the Australian Productivity Commission for eight different types of games. Key behavioral statistics on light regular, heavy regular, and pathological gamblers were computed and compared. The key finding is that pathological gambling, just like regular gambling, follows the Duplication of Purchase Law, which states that the dominant factor of purchase duplication between two brands is their market shares. This means that gambling between any two games at pathological level, like any regular consumer purchases, exhibits “law-like” regularity based on the pathological gamblers’ participation rate of each game. Additionally, pathological gamblers tend to gamble more frequently across all games except lotteries and instant as well as make greater cross-purchases compared to heavy regular gamblers. A better understanding of the behavioral traits between regular (particularly heavy regular) and pathological gamblers can be useful to public policy makers and social marketers in order to more accurately identify such gamblers and better manage the negative impacts of gambling.