Historique
Périodique
Shaping cocaine abstinence by successive approximation
Auteur(s) :
K. L. PRESTON ;
A. UMBRICHT ;
C. J. WONG ;
D. H. EPSTEIN
Article en page(s) :
643-654
Refs biblio. :
43
Domaine :
Drogues illicites / Illicit drugs
Langue(s) :
Anglais
Thésaurus mots-clés
COCAINE
;
ABSTINENCE
;
METHADONE
;
TRAITEMENT DE MAINTENANCE
;
POLYCONSOMMATION
;
DEPISTAGE
;
URINE
;
ENQUETE
Note générale :
Journal of Consulting and Clinical Psychology, 2001, 69, (4), 643-654
Résumé :
Cocaine-using methadone-maintenance patients were randomized to standard contingency management (abstinence group, n = 49) or to a contingency designed to increase contact with reinforcers (shaping group, n = 46). For 8 weeks, both groups earned escalating-value vouchers based on thrice-weekly urinalyses: The abstinence group earned vouchers for cocaine-negative urines only; the shaping group earned vouchers for each urine specimen with a 25% or more decrease in cocaine metabolite (first 3 weeks) and then for negative urines only (last 5 weeks). Cocaine use was lower in the shaping group, but only in the last 5 weeks, when the response requirement was identical. Thus, the shaping contingency appeared to better prepare patients for abstinence. A 2nd phase of the study showed that abstinence induced by escalating-value vouchers can be maintained by a nonescalating schedule, suggesting that contingency management can be practical as a maintenance treatment.
Affiliation :
Intramural Research Program, National Institute on Drug Abuse, Baltimore, Maryland 21224, USA
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