Richard J. Rosenthal

Pathological gambling: A review of the literature (prepared for the American Psychiatric Association task force on DSM-IV committee on disorders of impulse control not elsewhere classified).

This is a review of the literature on pathological gambling prepared for the work group on disorders of impulse control, not elsewhere classified of the American Psychiatric Association. It introduces the new DSM-IV criteria as well as outlines the phases of the career of the pathological gambler. Research discussed includes that on pathological gambling and psychiatric disorders, substance abuse, family issues, children, finances, and crime. Psychoanalytic, personality, behavioral, sociological, psychologically based addiction theories, and physiological research are also summarized. Finally, treatment outcome studies are outlined.

Studies of the 48 bp repeat polymorphism of the DRD4 gene in impulsive, compulsive, addictive behaviors: Tourette syndrome, ADHD, pathological gambling, and substance abuse.

Prior studies have reported an association between the presence of the 7 repeat allele of the 48 bp repeat polymorphism of the third cytoplasmic loop of the dopamine D4 receptor gene (DRD4) and novelty seeking behaviors, attention deficit hyperactivity disorder (ADHD), Tourette syndrome (TS), pathological gambling, and substance abuse. However, other studies have failed to replicate some of these observations. To determine whether we could replicate these associations we genotyped 737 individuals from four different groups of control subjects, and 707 index subjects from four different groups of impulsive, compulsive addictive behaviors including substance abuse, pathological gambling, TS, and ADHD. Chi-square analysis of those carrying the 7 allele versus non-7 allele carriers was not significant for any of the groups using a Bonferroni corrected alpha of.0125. However, chi-square analysis of those carrying any 5 to 8 allele versus noncarriers was significant for pathological gambling (p <.0001), ADHD (p </=.01) and the total index group (p </=.0004). When the comparison included all 7 alleles the results were significant for gamblers (p <.0001), TS (p </=.003), ADHD (p </=.003), and the total group (p </=.0002). There was a significant increase in the frequency of heterozygosity versus homozygosity for all alleles for pathological gamblers (p </=.0031) and the total index group (p </=.0015), suggesting that heterosis played a role. In the substance abuse subjects a quantitative summary variable for the severity of drug dependence, based on the Addiction Severity Index, showed that the scores varied by increasing severity across the following genotypes: 44 </= heterozygotes </= 77 </= 22. Studies of other quantitative traits indicated an important role for the 2 allele and the 22, 24, and 27 genotypes. All studies indicated that the role of the DRD4 gene in impulsive, compulsive, addictive behaviors is more complex than a sole focus on the 7 versus non-7 alleles.

The additive effect of neurotransmitter genes in pathological gambling.

As access to gambling increases there is a corresponding increase in the frequency of addiction to gambling, known as pathological gambling. Studies have shown that a number of different neurotransmitters are affected in pathological gamblers and that genetic factors play a role. Polymorphisms at 31 different genes involved in dopamine, serotonin, norepinephrine, GABA and neurotransmitters were genotyped in 139 pathological gamblers and 139 age, race, and sex‐matched controls. Multivariate regression analysis was used with the presence or absence of pathological gambling as the dependent variable, and the 31 coded genes as the independent variables. Fifteen genes were included in the regression equation. The most significant were the DRD2, DRD4, DAT1, TPH, ADRA2C, NMDA1, and PS1 genes. The r2 or fraction of the variance was less than 0.02 for most genes. Dopamine, serotonin, and norepinephrine genes contributed approximately equally to the risk for pathological gambling. These results indicate that genes influencing a range of brain functions play an additive role as risk factors for pathological gambling. Multi‐gene profiles in specific individuals may be of assistance in choosing the appropriate treatment.

A psychodynamic approach to the treatment of pathological gambling: Part I. Achieving abstinence

A psychodynamic approach emphasizes the meaning and consequences of ones behavior. After a brief review of the literature, the authors present the first of a two-part model for psychodynamic psychotherapy with pathological gamblers. In this first phase, the immediate goal is abstinence, and five strategies for obtaining it are discussed. These consist of 1.) breaking through the denial 2.) confronting omnipotent defenses 3.) interrupting the chasing cycle 4.) identifying reasons for gambling, and 5.) motivating the patient to become an active participant in treatment. An argument is made for integrating a traditional psychodynamic approach with an addictions model.

Exon and intron variants in the human tryptophan 2,3-dioxygenase gene: potential association with Tourette syndrome, substance abuse and other disorders.

Defects in serotonin metabolism, and abnormalities in both blood serotonin and tryptophan levels, have been reported in many psychiatric disorders. Tryptophan 2,3-dioxygenase (TDO2) is the rate limiting enzyme for the breakdown of tryptophan to N-formyl kenurenine. Functional variants of this gene could account for the observed simultaneous increases or decreases of both serotonin and tryptophan in various disorders. We have identified four different polymorphisms of the human TDO2 gene. Association studies show a significant association of one or more of these polymorphisms and Tourette syndrome (TS), attention deficit hyperactivity disorder (ADHD) and drug dependence. The intron 6G-->T variant was significantly associated with platelet serotonin levels. Only the association with TS was significant with a Bonferroni correction (p = 0.005). Our purpose here is not to claim these associations are proven, but rather to report preliminary results and show that easily testable polymorphisms are available. We hope to encourage additional research into the potential role the TDO2 gene in these and other psychiatric disorders.

Preventing the Incidence and Harm of Gambling Problems

An increase in prevalence of problem gambling and gambling-related costs to the individual, family, and community are accompanying the spreading availability of venues in which to gamble. This highlights the need for effective educational programs, media campaigns, consumer protection, and public policy aimed at preventing increased incidence of problematic gambling behavior. This review explores prominent models of prevention including the risk and protective factors model, levels-of-prevention, and the public health perspective and illustrates each model’s power to facilitate efforts toward preventing gambling problems. The current state of problem gambling prevention research and practice is delineated and future directions for policy are made. Editors’ Strategic Implications: Researchers and policymakers will benefit from the review and set of recommendations and also the detailed supplemental online content, in the form of six helpful Appendixes related to gambling prevention resources and materials.

Gambling and the onset of comorbid mental disorders: a longitudinal study evaluating severity and specific symptoms.

While the association between gambling disorders and comorbid mental disorders has been extensively studied, only a few studies have used longitudinal data or evaluated the association across different levels of gambling behavior and specific gambling-related symptoms. In this study, longitudinal data from waves 1 and 2 of the National Epidemiological Survey on Alcohol and Related Conditions (NESARC) were used to determine whether different levels of gambling behavior and gambling-related symptoms were associated with the onset of psychiatric disorders. Although NESARC used DSM-IV diagnoses, for this study, the recently published DSM-5 diagnostic criteria for gambling disorder were used to group the NESARC respondents (N=34,653) into three levels of gambling (gambling disorder, sub-threshold gambling disorder, and recreational gambling) and one non-gambling comparison group. Three years after the initial intake interview, compared to the non-gamblers, those reporting any gambling behavior at baseline were at increased risk to have any mood, anxiety, or substance use disorders (recreational gambling: adjusted odds ratio [AOR]=1.16, 95% confidence interval [CI]=1.10–1.23; sub-threshold gambling disorder: AOR 1.77, 95% CI 1.63–1.92; gambling disorder: AOR 2.51, 95% CI 1.83–3.46). Similar graded relationships were found for a number of specific disorders. In addition, multiple specific gambling-related symptoms were associated with comorbid disorders, possibly suggesting the interaction of different mechanisms linking gambling disorder and the onset of comorbid psychopathology. In conclusion, a graded or dose-response relationship exists between different levels of gambling and the onset of comorbid psychopathology. Among gambling groups, those with a gambling disorder were at the highest risk for the new onset of comorbid conditions and those with recreational gambling were at the lowest risk, while the risk among participants with sub-threshold gambling disorder fell between these two groups. (Journal of Psychiatric Practice 2014;20:207–219)

Sleep and Gambling Severity in a Community Sample of Gamblers

Although sleep has been extensively studied in substance related disorders, it has yet to be examined as thoroughly in gambling-related disorders. The purpose of this study is to examine the relationship between gambling severity and sleep disturbances in a sample of non-treatment seeking gamblers (N = 96) using the Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (ESS). Mean ESS scores for recreational, problem, and pathological gamblers were 4.13, 5.81, and 8.69, respectively, with a significant difference between pathological gamblers and both problem (P = .007) and recreational gamblers (P < .001). Mean PSQI scores for recreational, problem, and pathological gamblers were 3.35, 5.30, and 5.44, respectively, with a significant difference in sleep quality between recreational and problem gamblers (P = .018), as well as recreational and pathological gamblers (P = .008). As the first study to use objective sleep measures, these findings will not only increase awareness of this relationship, but also provide a foundation on which others can investigate the benefits of screening and adjunct treatment for sleep disorders in the gambling population.

Psicoterapia psicodinâmica e o tratamento do jogo patológico

OBJECTIVE The search for empirically based treatments for pathological gambling is in its infancy, with relatively few clinical trials and an absence of naturalistic studies. Treatment retention of gamblers has been a problem; cognitive-behavioral treatment and pharmacotherapy studies report especially high dropout rates. Psychodynamic approaches, with their emphasis on the therapeutic relationship, and the meaning of the patients self-destructive and seemingly irrational behaviors, and on obstacles to self-forgiveness, might improve outcome. METHOD After a description of psychodynamic psychotherapy, the literature on both short-term and longer therapies is reviewed regarding their efficacy for a variety of disorders. With regard to pathological gambling, the author summarizes the early (1914-1970) psychoanalytic literature then reviews the more recent psychodynamic psychotherapy literature on pathological gambling. RESULTS A review of the recent psychodynamic psychotherapy literature on pathological gambling failed to disclose a single randomized controlled study of treatment efficacy or effectiveness. However, there are eight positive outcome studies described as multi-modal eclectic; half of those seem to utilize psychodynamic approaches. Two of the more successful programs are described. CONCLUSIONS A review of the outcomes literature for psychodynamic psychotherapy demonstrates efficacy for a variety of disorders sufficient to justify a clinical trial for pathological gambling. Short-term psychodynamic psychotherapy, with its focus on core issues, may be particularly applicable to the pathological gamblers need to avoid or escape intolerable affects and problems. Longer therapies may be needed to modify an avoidant coping style and defenses.

Problem and Pathological Gambling in a Sample of Casino Patrons

Relatively few studies have examined gambling problems among individuals in a casino setting. The current study sought to examine the prevalence of gambling problems among a sample of casino patrons and examine alcohol and tobacco use, health status, and quality of life by gambling problem status. To these ends, 176 casino patrons were recruited by going to a Southern California casino and requesting that they complete an anonymous survey. Results indicated the following lifetime rates for at-risk, problem, and pathological gambling: 29.2, 10.7, and 29.8%. Differences were found with regards to gambling behavior, and results indicated higher rates of smoking among individuals with gambling problems, but not higher rates of alcohol use. Self-rated quality of life was lower among pathological gamblers relative to non-problem gamblers, but did not differ from at-risk or problem gamblers. Although subject to some limitations, our data support the notion of higher frequency of gambling problems among casino patrons and may suggest the need for increased interventions for gambling problems on-site at casinos.