Delay discounting in currently using and currently abstinent cocaine-dependent outpatients and non-drug-using matched controls
Delay discounting in currently using and currently abstinent cocaine-dependent outpatients and non-drug-using matched controls
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DOI：
10.1016/j.addbeh.2005.09.005
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发表时间：
2006-07-01
影响因子：
4.4
通讯作者：
Bickel, Warren K.
中科院分区：
文献类型：
--
作者：
Heil, Sarah H.;Johnson, Matthew W.;Bickel, Warren K.
药物滥用者的延迟折扣率始终高于非药物使用的匹配对照组。从一些对目前和以前药物滥用者的折扣率进行比较的研究中获得的其他数据表明，折扣率可能是可调整的，戒毒可能与折扣率的减少有关。本研究的主要目的是确定与当前可卡因使用者和非药物使用匹配对照相比，可卡因戒断期（至少30天）是否导致主要可卡因依赖患者人群中货币贴现率的改变。结果表明，目前戒烟和目前使用可卡因依赖门诊患者之间的折扣没有差异。当这两组结合起来，可卡因依赖患者表现出较高的折扣率比非药物使用匹配的控制。这些数据重复了以前在可卡因依赖者和其他物质滥用者中与非药物使用对照组相比的工作，并表明可能需要更长时间的禁欲来修改这一人群中的折扣。(c)2005爱思唯尔有限公司保留所有权利。
Higher rates of delay discounting have been consistently noted in substance abusers compared to non-drug-using matched controls. Additional data from some studies comparing discounting rates in current versus former substance abusers suggest that discounting rates may be adaptable and that drug abstinence may be associated with reductions in discounting. The primary purpose of the present study was to determine whether a period of cocaine abstinence (at least 30 days) resulted in altered discounting rates of money in a population of primary cocaine-dependent patients compared to current cocaine users and non-drug-using matched controls. Results suggest that there was no difference in discounting between currently abstinent and currently using cocaine-dependent outpatients. When these two groups were combined, cocaine-dependent patients showed higher discounting rates than non-drug-using matched controls. These data replicate previous work in cocaine-dependent and other substance abusers compared to non-drug-using controls and suggest that a longer period of abstinence may be required to modify discounting in this population. (c) 2005 Elsevier Ltd. All rights reserved.