Impulsive and self-control choices in opioid-dependent patients and non-drug-using control participants: Drug and monetary rewards
Impulsive and self-control choices in opioid-dependent patients and non-drug-using control participants: Drug and monetary rewards
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DOI：
10.1037/1064-1297.5.3.256
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发表时间：
1997-08-01
影响因子：
2.3
通讯作者：
Bickel, WK
中科院分区：
文献类型：
--
作者：
Madden, GJ;Petry, NM;Bickel, WK
在阿片类药物依赖和非药物使用对照参与者中研究了延迟折扣。后者的参与者在年龄、性别、教育和智商方面与前者相匹配。两组的参与者都选择了立即或延迟后提供的假设货币奖励。延迟奖励是1,000美元，即时奖励金额被调整，直到选择反映出冷漠。在7次延迟（1周至25年）中重复该程序。阿片类药物依赖的参与者使用相同的程序（即，迟发海洛因的数量是1，000美元可以购买的数量）。阿片类药物依赖的参与者折扣延迟的金钱奖励显着超过非吸毒参与者。此外，阿片类药物依赖的参与者折扣延迟海洛因显着超过延迟金钱。
Delay discounting was investigated in opioid-dependent and non-drug-using control participants. The latter participants were matched to the former on age, gender, education, and IQ. Participants in both groups chose between hypothetical monetary rewards available either immediately or after a delay. Delayed rewards were $1,000, and the immediate-reward amount was adjusted until choices reflected indifference. This procedure was repeated at each of 7 delays (1 week to 25 years). Opioid-dependent participants were given a second series of choices between immediate and delayed heroin, using the same procedures (i.e., the amount of delayed heroin was that which could be purchased with $1,000). Opioid-dependent participants discounted delayed monetary rewards significantly more than did non-drug-using participants. Furthermore opioid-dependent participants discounted delayed heroin significantly more than delayed money.