The Sexual Discounting Task: HIV risk behavior and the discounting of delayed sexual rewards in cocaine dependence
The Sexual Discounting Task: HIV risk behavior and the discounting of delayed sexual rewards in cocaine dependence
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DOI：
10.1016/j.drugalcdep.2011.09.032
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发表时间：
2012-06-01
影响因子：
4.2
通讯作者：
Bruner, Natalie R.
中科院分区：
文献类型：
--
作者：
Johnson, Matthew W.;Bruner, Natalie R.
背景：可卡因依赖与高风险性行为和HIV感染率相关。方法：可卡因依赖个体（N = 62）完成了一项新的性折扣任务，评估四个假设性伙伴之间立即无保护性行为和延迟使用避孕套性行为的决定：大多数（也是最不可能）感染性传播感染（STI），（和最不）性欲望;一个真实的奖励金钱延迟折扣任务，和自我报告的性风险行为，使用艾滋病毒风险行为量表（HRBS）。性折扣任务的结果在很大程度上是系统的，并显示出强烈的影响，延迟减少避孕套的使用。性折扣（偏好立即无保护的性行为）显着更大时，作出反应的合作伙伴判断最不可能（与大多数相比）有性病，并为合作伙伴判断最（与最少）可取的。在控制了不同条件下避孕套使用的差异（没有延迟）后，性折扣的差异是显着的。在4个性折扣任务条件中的3个条件下，更大的折扣与HRBS测量的更大的自我报告的性风险行为相关，但在金钱折扣任务中没有。结果表明，延迟是一个重要的变量，强烈影响艾滋病毒的性风险行为，性折扣任务为这种现象提供了一种临床敏感的测量方法，可以解决有关艾滋病毒风险的各种问题，未来的研究。关于延迟折扣的丰富的行为和神经生物学数据应该对艾滋病毒教育和预防产生影响。(C)2011爱思唯尔爱尔兰有限公司保留所有权利。
Background: Cocaine dependence is associated with high rates of sexual risk behavior and HIV infection. However, little is known about the responsible mechanism(s).Methods: Cocaine-dependent individuals (N = 62) completed a novel Sexual Discounting Task assessing decisions between immediate unprotected sex and delayed sex with a condom across four hypothetical partners: most (and least) likely to have a sexually transmitted infection (STI), and most (and least) sexually desirable; a real rewards money delay-discounting task, and self-reported sexual risk behavior using the HIV Risk-Taking Behavior Scale (HRBS).Results: Sexual Discounting Task results were largely systematic and showed a strong effect of delay in decreasing condom use. Sexual discounting (preference for immediate unprotected sex) was significantly greater when making responses for partners judged least (compared to most) likely to have an STI, and for partners judged most (compared to least) desirable. Differences in sexual discounting were significant after controlling for differences in condom use (with no delay) between conditions. Greater discounting in 3 of the 4 Sexual Discounting Task conditions, but not in the money discounting task, was associated with greater self-reported sexual risk behavior as measured by the HRBS.Conclusions: Results suggest that delay is a critical variable strongly affecting HIV sexual risk behavior, and that the Sexual Discounting Task provides a clinically sensitive measure of this phenomenon that may address a variety of questions about HIV risk in future research. The wealth of behavioral and neurobiological data on delay discounting should be brought to bear on HIV education and prevention. (C) 2011 Elsevier Ireland Ltd. All rights reserved.