Titre : | Heroin and cocaine abusers have higher discount rates for delayed rewards than alcoholics or non-drug-using controls |
Titre traduit : | (Comportement des héroïnomanes et cocaïnomanes face a un modèle thérapeutique basé sur la récompense. Comparaison avec des alcooliques ou un groupe contrôle de non usagers de drogues) |
Auteurs : | K. N. KIRBY ; N. M. PETRY |
Type de document : | Périodique |
Année de publication : | 2004 |
Format : | 461-471 / graph. ; tabl. |
Note générale : |
Addiction, 2004, 99, (4), 461-471 |
Langues: | Anglais |
Discipline : | TRA (Traitement et prise en charge / Treatment and care) |
Mots-clés : |
Thésaurus mots-clés HEROINE ; COCAINE ; ABUS ; USAGER ; TRAITEMENT ; MOTIVATION ; COMPARAISON ; ALCOOLIQUE |
Résumé : |
ENGLISH : Aims : To test a prediction of the discounting model of impulsiveness that discount rates would be positively associated with addiction. The delay-discount rate refers to the rate of reduction in the present value of a future reward as the delay to that reward increases. Design and measurements : We estimated participants' discount rates on the basis of their pattern of choices between smaller immediate rewards ($11-80) and larger, delayed rewards ($25-85 ; at delays from 1 week to 6 months) in a questionnaire format. Participants had a one-in-six chance of winning a reward that they chose on one randomly selected trial. Participants and setting : Heroin (n = 27), cocaine (n = 41) and alcohol (n=33) abusers and non-drug-using controls (n=44) were recruited from advertisements. They were tested in a drug abuse research clinic at a medical school. Findings : On average, the cocaine and heroin groups had higher rates than controls (both P 0.50). Conclusions : These data suggest that discount rates vary with the preferred drug of abuse, and that high discount rates should be considered in the development of substance abuse prevention and treatment efforts. (Review' s abstract) |
Note de contenu : | graph. ; tabl. |
Domaine : | Drogues illicites / Illicit drugs |
Refs biblio. : | 31 |
Affiliation : |
Bronfman Science Ctr. Williams College., Williamstown, MA 01267 ; kkirbywilliams.edu Etats-Unis. United States. |
Numéro Toxibase : | 207422 |
Centre Emetteur : | 02 Coordonnateur |
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