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1.  Brain Imaging Studies in Pathological Gambling 
Current Psychiatry Reports  2010;12(5):418-425.
This article reviews the neuroimaging research on pathological gambling (PG). Because of the similarities between substance dependence and PG, PG research has used paradigms similar to those used in substance use disorder research, focusing on reward and punishment sensitivity, cue reactivity, impulsivity, and decision making. This review shows that PG is consistently associated with blunted mesolimbic-prefrontal cortex activation to nonspecific rewards, whereas these areas show increased activation when exposed to gambling-related stimuli in cue exposure paradigms. Very little is known, and hence more research is needed regarding the neural underpinnings of impulsivity and decision making in PG. This review concludes with a discussion regarding the challenges and new developments in the field of neurobiological gambling research and comments on their implications for the treatment of PG.
doi:10.1007/s11920-010-0141-7
PMCID: PMC2933850  PMID: 20676945
Pathological gambling; Addiction; Neuroimaging; Neuropsychology

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