Document Detail

Impulsivity and risk-taking in co-occurring psychotic disorders and substance abuse.
MedLine Citation:
PMID:  20870294     Owner:  NLM     Status:  In-Data-Review    
Impulsivity is a risk-factor associated with substance use disorders. On paper-and-pencil measures, people with comorbid psychotic disorders and substance abuse have been shown to be more impulsive than their non-using counterparts. However, there has been little research on the behavioral components that, collectively, define the construct of impulsivity, which have been identified as: temporal discounting, risk taking, underestimating time, and failure to inhibit extraneous responding. This study compared people with psychotic disorders who did and did not use cocaine on behavioral measures of these components. One group (COC-now) had a positive urine drug screen (UDS) for cocaine (N=20). A second group (COC-past) had a negative UDS, but a positive cocaine history (N=20). Finally, the third group (control) had no history of cocaine use (N=20). Those with a current or past history of cocaine use engaged in more risk-taking behaviors and seemed to be less affected by anticipated loss and more attuned to monetary gains. However, contrary to our hypothesis, patients in the COC-now group selected larger, delayed rewards over the smaller, immediate rewards. Performance on the immediate/delay task also suggested greater attentiveness to the magnitude of the monetary reward for patients with a positive UDS.
Stephanie Marcello Duva; Steven Michael Silverstein; Ralph Spiga
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Publication Detail:
Type:  Journal Article     Date:  2010-09-25
Journal Detail:
Title:  Psychiatry research     Volume:  186     ISSN:  0165-1781     ISO Abbreviation:  Psychiatry Res     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7911385     Medline TA:  Psychiatry Res     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  351-5     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.
University of Medicine and Dentistry of New Jersey, USA.
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