Authors
Jasmin Vassileva, Stefan Georgiev, Eileen Martin, Raul Gonzalez, Laura Segala
Publication date
2011/4/1
Journal
Drug and alcohol dependence
Volume
114
Issue
2-3
Pages
194-200
Publisher
Elsevier
Description
BACKGROUND
Impulsivity is a hallmark characteristic of drug addiction and a prominent feature of externalizing disorders such as psychopathy that are commonly comorbid with drug addiction. In a previous study (Vassileva et al., 2007) we have shown that psychopathic heroin addicts evidence more impulsive decision-making on the Iowa Gambling Task relative to non-psychopathic heroin addicts. The goal of the current study was to investigate whether the observed impulse-control deficits in psychopathic heroin addicts would generalize to other neurocognitive domains of impulsivity, such as delay discounting and behavioral inhibition among a group of relatively “pure” heroin addicts in Bulgaria who participated in our previous study.
METHODS
We tested 92 currently abstinent male heroin addicts, classified as psychopathic or non-psychopathic based on the Hare Psychopathy Checklist – Revised (PCL-R). We …
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