Pathological gambling and platelet MAO activity: a psychobiological study

Carlos Blanco · L Orensanz-Muñoz · Carmen-Rosa Blanco-Jerez · Pilar Alejandra Sáiz

147 citations0/0 files storedAmerican Journal of Psychiatry

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Gambling Behavior and Treatments Substance Abuse Treatment and Outcomes Neurotransmitter Receptor Influence on Behavior

Abstract

OBJECTIVE: The authors studied platelet monoamine oxidase (MAO) activity and psychological characteristics of male pathological gamblers. METHOD: Twenty-seven male pathological gamblers were compared with a group of healthy individuals who were matched by age, sex, and tobacco consumption. Measures included platelet MAO activity and scores on the MMPI and Zuckerman's Sensation Seeking Scale. RESULTS: Platelet MAO activity and scores on several MMPI scales for the two groups were significantly different, but measures of sensation seeking were not. No correlations of biological significance were found between platelet MAO activity and psychological ratings. CONCLUSIONS: Low platelet MAO activity may be a biological predisposition for impulsivity in pathological gamblers. Although no psychological pattern is characteristic of pathological gamblers, they differ from healthy individuals in some personality traits. No significant relationship could be established between platelet MAO activity and psychological measures.

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References

1980Sensation seeking. Beyond the optimal level of arousal 1991Pathological 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)1988Psychopharmacology: The Third Generation of Progress

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