Department of Applied Behavioral Science, University of Kansas, 4041 Dole Developmental Center, 1000 Sunnyside Ave., Lawrence, KS, 66045, USA.
Department of Applied Behavioral Science and Problem Gambling Research and Education Support System, University of Kansas, 1000 Sunnyside Ave., Lawrence, KS, 66045, USA.
Arch Sex Behav. 2018 Apr;47(3):551-563. doi: 10.1007/s10508-017-1040-3. Epub 2017 Sep 14.
College students commonly engage in risky sexual behaviors, such as casual sexual encounters and inconsistent condom use. Discounting paradigms that examine how individuals devalue rewards due to their delay or uncertainty have been used to improve our understanding of behavioral problems, including sexual risk. The current study assessed relations between college women's sexual partners discounting and risky sexual behavior. In this study, college women (N = 42) completed two sexual partners delay discounting tasks that assessed how choices among hypothetical sexual partners changed across a parametric range of delays in two conditions: condom availability and condom unavailability. Participants also completed two sexual partners probability discounting tasks that assessed partner choices across a parametric range of probabilities in condom availability and unavailability conditions. Additionally, participants reported risky sexual behavior on the Sexual Risk Survey (SRS). Participants discounted delayed partners more steeply in the condom availability condition, but those differences were significant only for those women with three or fewer lifetime sexual partners. There were no consistent differences in discounting rate across condom availability conditions for probability discounting. Sexual partners discounting measures correlated with risky sexual behaviors as measured by the SRS, but a greater number of significant relations were observed with the condoms-unavailable delay discounting task. These findings suggest the importance of examining the interaction of inconsistent condom use and multiple partners in examinations of sexual decision-making.
大学生普遍存在风险性行为，例如随意发生性行为和不规律使用避孕套。为了提高对包括性行为风险在内的行为问题的理解，已经采用了一些忽视个体因延迟或不确定性而降低奖励价值的范式。本研究评估了女大学生性伴侣折扣与风险性行为之间的关系。在这项研究中，女大学生（N=42）完成了两项性伴侣延迟折扣任务，这些任务评估了在两种条件下（避孕套可获得和不可获得），对假设性性伴侣的选择如何随着延迟的参数范围而变化： condom availability 是指避孕套可获得的情况，而 condom unavailability 是指避孕套不可获得的情况。参与者还完成了两项性伴侣概率折扣任务，这些任务评估了在避孕套可获得和不可获得条件下，伴侣选择的概率参数范围。此外，参与者还报告了 Sexual Risk Survey（SRS）中的风险性行为。参与者在 condom availability 条件下更陡峭地折现延迟的伴侣，但这些差异仅在那些有三个或更少性伴侣的女性中显著。在 condom availability 条件下，概率折扣的折扣率没有一致的差异。性伴侣折扣测量与 SRS 测量的风险性行为相关，但在 condom-unavailable 延迟折扣任务中观察到更多显著的关系。这些发现表明，在对性行为决策进行检查时，需要考虑到不一致使用避孕套和多个伴侣的相互作用。
