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Zack M, Behzadi A, Biback C, Chugani B, DiGiacomo D, Fang T, Houle S, Kalia A, Lobo D, Payer D, Poulos CX, Rusjan PM, Smart K, Tatone D, Warsh J, Wilson AA, Kennedy JL. Dopamine mediates a directionally opposite correlation between empathy and the reinforcing effects of amphetamine and gambling in people with gambling disorder vs. healthy controls. Pharmacol Biochem Behav 2024; 245:173865. [PMID: 39236810 DOI: 10.1016/j.pbb.2024.173865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 06/05/2024] [Accepted: 08/25/2024] [Indexed: 09/07/2024]
Abstract
Understanding the relationship between empathy, subjective effects of addictive reinforcers and dopamine function in people with gambling disorder (PGD) vs. healthy controls (HCs) may inform GD treatment. The current investigation addressed this issue via retrospective analysis of data from three studies using amphetamine and a slot machine (SLOTS) as reinforcers in PGD and HCs. The Empathy scale of Eysenck's Impulsiveness Questionnaire assessed trait Empathy. The Gamblers Beliefs Questionnaire assessed cognitive distortions. The Eysenck Lie scale assessed socially desirable responding. PET scans quantified dopamine receptor expression and amphetamine-induced dopamine release in Study 1. Pre-treatment with the D2-receptor (D2R)-preferring antagonist, haloperidol or D1R-D2R antagonist, fluphenazine before SLOTS tested the role of D2 autoreceptors and post-synaptic D2R in Study 2. Pre-treatment with the multi-system indirect dopamine agonist, modafinil before SLOTS assessed the reliability of correlations in PGD. Striatal D2R expression predicted greater Empathy and lower amphetamine 'Liking' in HCs, and predicted greater symptom severity in PGD. Empathy predicted lower 'Exciting' effects of SLOTS under placebo in HCs; no correlation emerged under either antagonist. Relative to placebo, haloperidol decreased, whereas fluphenazine increased, the positive correlation between Empathy and Exciting effects of SLOTS in PGD. Modafinil markedly reduced the positive correlation between Empathy and Exciting effects of SLOTS seen under placebo in PGD. Empathy predicted greater cognitive distortions in PGD in all studies. Lie scale variance influenced several primary effects. Prior research linking the insula with Empathy, reactivity to interoceptive signals for risky rewards (uncertainty), and cognitive distortions, provides a parsimonious account for these results.
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Affiliation(s)
- Martin Zack
- Molecular Brain Sciences Dept., Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada; Dept. of Pharmacology & Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Arian Behzadi
- Vivian M. Rakoff PET Centre, Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada
| | - Candice Biback
- Dept. of Pharmacology & Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Bindiya Chugani
- Dept. of Pharmacology & Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Dan DiGiacomo
- Addiction Psychiatry Service, Centre for Addiction & Mental Health, Toronto, ON M6J 1H4, Canada
| | - Tim Fang
- Dept. of Pharmacology & Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Sylvain Houle
- Vivian M. Rakoff PET Centre, Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada
| | - Aditi Kalia
- Dept. of Pharmacology & Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Daniela Lobo
- Addiction Psychiatry Service, Centre for Addiction & Mental Health, Toronto, ON M6J 1H4, Canada
| | - Doris Payer
- Vivian M. Rakoff PET Centre, Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada
| | - Constantine X Poulos
- Molecular Brain Sciences Dept., Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada
| | - Pablo M Rusjan
- Vivian M. Rakoff PET Centre, Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada
| | - Kelly Smart
- Dept. of Pharmacology & Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada; Vivian M. Rakoff PET Centre, Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada
| | - Daniel Tatone
- Dept. of Pharmacology & Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Jerry Warsh
- Vivian M. Rakoff PET Centre, Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada; Dept. of Psychiatry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Alan A Wilson
- Vivian M. Rakoff PET Centre, Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada
| | - James L Kennedy
- Molecular Brain Sciences Dept., Centre for Addiction & Mental Health, Toronto, ON M5T 1R8, Canada; Dept. of Psychiatry, University of Toronto, Toronto, ON M5S 1A8, Canada
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Thurm A, Satel J, Montag C, Griffiths MD, Pontes HM. The Relationship Between Gambling Disorder, Stressful Life Events, Gambling-Related Cognitive Distortions, Difficulty in Emotion Regulation, and Self-Control. J Gambl Stud 2023; 39:87-101. [PMID: 35921002 PMCID: PMC9346051 DOI: 10.1007/s10899-022-10151-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2022] [Indexed: 11/28/2022]
Abstract
Gambling Disorder (GD) is a prominent psychiatric disorder affecting individuals worldwide. Research suggests that key risk factors for GD include stressful life events (SLEs) and specific psychological factors, such as gambling-related cognitive distortions. The present study investigated the potential mediating role of specific psychological factors (i.e., gambling-related cognitive distortions, difficulty in emotion regulation, and self-control) in the relationship between SLEs and GD. A cross-sectional study using an online survey was developed to investigate the relationship between SLEs and GD in a mediation model. A total of 516 participants were initially recruited online to the present study, and data from 290 participants were fully included in the statistical analyses conducted. Sociodemographic and gambling-related data were collected in addition to data related to participants' SLEs, GD, gambling-related cognitive distortions, difficulty in emotion regulation, and self-control. The results of the parallel multiple mediation analysis conducted found that gambling-related cognitive distortions and difficulty in emotion regulation mediated the relationship between SLEs events and GD. However, self-control was not found to mediate this relationship. The findings suggest that individuals who experience SLEs may be more vulnerable to the development of GD through their belief in gambling-related cognitive distortions and experience of difficulty regulating their emotions. Implications regarding potential preventive efforts for GD are discussed.
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Affiliation(s)
- Ashleigh Thurm
- School of Psychological Sciences, University of Tasmania, Hobart, Australia
| | - Jason Satel
- School of Psychological Sciences, University of Tasmania, Hobart, Australia
| | - Christian Montag
- Department of Molecular Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Mark D Griffiths
- International Gaming Research Unit, Psychology Department, Nottingham Trent University, Nottingham, UK
| | - Halley M Pontes
- Department of Organizational Psychology, Birkbeck, University of London, Malet St, Bloomsbury, London, WC1E 7HX, UK.
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Relations Among Gambling Behavior, Associated Problems, Game Type, and Risk Factors in a Rural, African American, Adolescent Sample. J Gambl Stud 2021; 38:425-443. [PMID: 34319531 DOI: 10.1007/s10899-021-10060-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2021] [Indexed: 11/27/2022]
Abstract
Problem gambling is a rising concern among adolescent populations; youth gamble more frequently than adults, and those who gamble are more susceptible than adults to maladaptive outcomes. Research shows that gambling problems are exacerbated among minorities, despite lower rates of gambling frequency. Minority youth are at especially high risk for problematic gambling outcomes, though they have not been widely studied. The objectives of this study were to (a) investigate gambling frequency and rates of associated problems among rural, African American youth, (b) examine risk factors associated with gambling problems, and (c) explore preferences for game type. Hypotheses were tested with survey data from 270 African American youth from rural communities in Georgia, ages 14-17. Past-year gambling prevalence was 38% (48% of males and 28% of females), and 30% of those who gambled (11% of the total sample) reported at least one problem behavior associated with gambling. Confirmatory factor analysis established a distinction between games of skill versus luck. Gambling problems were associated with skill games, and youth played skill games more than luck games. Substance use and anger scores predicted gambling frequency, and gambling frequency predicted gambling problems. Depression scores provided no predictive utility. Poverty status was negatively associated with skill gambling, and there was no association between poverty status and luck gambling. Males gambled more frequently, had more gambling problems, and were more likely to engage in skill gambling relative to females.
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The structure and subtypes of gambling activities: Genetic, psychiatric and behavioral etiologies of gambling frequency. Addict Behav 2021; 113:106662. [PMID: 33011493 DOI: 10.1016/j.addbeh.2020.106662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 09/08/2020] [Accepted: 09/13/2020] [Indexed: 11/21/2022]
Abstract
The multitude of gambling activities has given rise to heterogeneous ways of analyzing these behaviors and may partially underlie the lack of replication in gambling research. The current study used complementary analyses to investigate the structure, typology and etiology of gambling behaviors in a discovery sample of 2,116 twins (54.86% female; Mage = 24.90) and a replication sample of 619 siblings (30.37% female; Mage = 28.00). Our approach was twofold. First, we used confirmatory factor analyses to investigate the structure across the frequency of eight gambling activities. Second, we used factor mixture models to identify gambling frequency subtypes. We assessed associations with gambling frequency as well as conducted genetically informed analyses to estimate the role of genetic and environmental influences. Across samples, a two-factor model fit the data best, with a Common Gambling factor influencing all activities and a separate factor for Skill Gambling. Our study identified four gambling frequency subtypes, which resembled the typology from the Pathways Model. We found distinct demographic, psychiatric, behavioral and genetic risk profiles for the different gambling factors and subtypes with robust associations observed for male sex, risk-taking, sensation seeking, alcohol dependence and problem gambling. Controlling for shared genetic and environmental influences (via co-twin control modeling), we found that sensation seeking directly increased Common Gambling frequency. In sum, we illustrated the utility of multi-dimensional statistical techniques for disentangling the structure and typology from complex multivariate gambling data.
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Lopez-Gonzalez H, Griffiths MD, Estévez A. Why Some Sports Bettors Think Gambling Addiction Prevented Them from Becoming Winners? A Qualitative Approach to Understanding the Role of Knowledge in Sports Betting Products. J Gambl Stud 2020; 36:903-920. [PMID: 32253656 DOI: 10.1007/s10899-020-09944-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sports betting products rely upon a balance between their knowledge and chance based structural characteristics. The emphasis by bookmakers on mastering the knowledge-based elements to become winners poses significant challenges for those seeking help for gambling disorder. Bettors find difficulties in integrating their preconceptions about the role of knowledge and skills in winning, into the new cognitive restructuring fostered by cognitive-behavioural therapy. Using a grounded theory approach, this study collected data from 43 Spanish sports bettors undergoing treatment for gambling disorder. The results suggest sports bettors neutralize some gambling-related cognitive distortions during CBT but retain others. Sports bettors try to eliminate them but encounter external validation to retain them, as well as internal incongruences to integrate them into a coherent understanding of how gambling works. The results are discussed with the aim of providing practical guidance as to how skill versus chance related persistent cognitions can be addressed in CBT.
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Affiliation(s)
- Hibai Lopez-Gonzalez
- Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Feixa Llarga s/n, Hospitalet del Llobregat, 08907, Barcelona, Spain.
| | - Mark D Griffiths
- International Gaming Research Unit, Psychology Department, Nottingham Trent University, Nottingham, UK
| | - Ana Estévez
- Psychology Department, University of Deusto, Bilbao, Spain
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Howe PDL, Vargas-Sáenz A, Hulbert CA, Boldero JM. Predictors of gambling and problem gambling in Victoria, Australia. PLoS One 2019; 14:e0209277. [PMID: 30673709 PMCID: PMC6343914 DOI: 10.1371/journal.pone.0209277] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 12/03/2018] [Indexed: 11/19/2022] Open
Abstract
In 2016, the gambling habits of a sample of 3361 adults in the state of Victoria, Australia, were surveyed. It was found that a number of factors that were highly correlated with self-reported gambling frequency and gambling problems were not significant predictors of gambling frequency and problem gambling. The major predictors of gambling frequency were the degree to which family members and peers were perceived to gamble, self-reported approval of gambling, the frequency of discussing gambling offline, and the participant's Canadian Problem Gambling Severity Index (PGSI) score. Age was a significant predictor of gambling frequency for certain types of gambling (e.g. buying lottery tickets). Approximately 91% of the explainable variance in the participant's PGSI score could be explained by just five predictors: Positive Urgency; Frequency of playing poker machines at pubs, hotels or sporting clubs; Participation in online discussions of betting on gaming tables at casinos; Frequency of gambling on the internet, and Overestimating the chances of winning. Based on these findings, suggestions are made as to how gambling-related harm can be reduced.
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Affiliation(s)
- Piers D. L. Howe
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia
- * E-mail:
| | - Adriana Vargas-Sáenz
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Carol A. Hulbert
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Jennifer M. Boldero
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia
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