Delay discounting, impulsiveness, and addiction severity in opioid-dependent patients. J Subst Abuse Treat 2011 Dec;41(4):354-62
Date
07/12/2011Pubmed ID
21741198Pubmed Central ID
PMC3192942DOI
10.1016/j.jsat.2011.05.003Scopus ID
2-s2.0-82455167840 (requires institutional sign-in at Scopus site) 48 CitationsAbstract
Individuals who abuse drugs show higher delay discounting (DD) rate and impulsiveness scores compared with controls; however, it is unclear if DD rate covaries with severity of the addiction or if an individual's discounting rate can be changed by effective substance abuse treatment. This study compared methadone maintenance treatment (MMT) patients (n = 30) who had not used illegal drugs for 2 years with drug-using MMT patients (n = 30) and controls (n = 25) in terms of addiction severity, DD rate, and impulsiveness. Methadone patients abstinent from illegal drugs scored significantly lower on a number of addiction severity measures than the drug-using methadone patients. In addition, both groups of MMT patients showed significantly higher rates of DD and impulsiveness than the control group; however, no differences in DD rate or impulsiveness were found between the groups of patients. Results suggest that DD rate and impulsiveness may not covary with indicators of addiction severity in MMT patients.
Author List
Robles E, Huang BE, Simpson PM, McMillan DEAuthor
Pippa M. Simpson PhD Adjunct Professor in the Pediatrics department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Analgesics, Opioid
Behavior, Addictive
Computers
Disease Progression
Female
Humans
Impulsive Behavior
Intelligence Tests
Male
Methadone
Middle Aged
Opioid-Related Disorders
Psychiatric Status Rating Scales
Reward
Smoking
Software
Substance Abuse Treatment Centers
Substance-Related Disorders
Surveys and Questionnaires
Time Factors
Urinalysis
Young Adult
