Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Exp Clin Psychopharmacol. 2003 Feb;11(1):18-25.

Impulsivity and rapid discounting of delayed hypothetical rewards in cocaine-dependent individuals.

Author information

  • 1Department of Psychiatry, University at Buffalo, State University of New York, Buffalo General Hosptial, 14203, USA. scoffey@acsu.buffalo.edu

Abstract

In this study, crack/cocaine-dependent (CD) and non-drug-using matched control (MC) participants were presented with hypothetical immediate and delayed rewards, with 16 delay conditions ranging from 5 min to 25 years. All participants were presented with hypothetical monetary rewards; however, the CD group was also presented with hypothetical crack/cocaine rewards. The objective value of the rewards ranged from $1 to $1,000. Hyperbolic discounting functions provided a good fit of the data. The CD group discounted monetary rewards at a higher rate than the MC group did, and the CD group discounted crack/cocaine rewards at a higher rate than it did monetary rewards. Moreover, scores on self-report measures indicated greater impulsivity in the CD group when compared with the MC group.

PMID:
12622340
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Psychological Association
    Loading ...
    Write to the Help Desk