Wongsomboon Val, Robles Elias
School of Social and Behavioral Sciences, Arizona State University, 4701 W. Thunderbird Road, Glendale, AZ, 85306, USA.
Arch Sex Behav. 2017 Oct;46(7):2131-2144. doi: 10.1007/s10508-016-0788-1. Epub 2016 Jul 29.
The value of safe sex may be discounted based on contextual factors associated with an opportunity for sex. College students in a within-subjects study selected hypothetical sexual partners from a set of pictures and classified them based on attractiveness and estimated chance of having an sexually transmitted infection (STI). In the Sexual Delay Discounting (SDD) task, participants rated their likelihood (0-100 %) of waiting for some period of time (e.g., 3 h) to have protected sex with their selected partners, when they could have immediate sex without protection. In the Sexual Probability Discounting (SPD) task, participants rated their likelihood of having protected sex if the opportunity was uncertain (e.g., 50 %), when they could have unprotected sex for sure (100 %). All participants included in the final analyses were aware of and had a positive attitude towards protection against STIs as they were likely to have immediate (or certain) protected sex. Results from 432 delay data in the SDD task and 488 probability data in the SPD task showed that participants' preference for safe sex systematically decreased as the delay to and odds against having safe sex increased. However, this preference was altered by the participants' perception of their partner's attractiveness and STI risk.
安全性行为的价值可能会因与性行为机会相关的背景因素而被低估。在一项被试内研究中，大学生从一组图片中选择假设的性伴侣，并根据吸引力和感染性传播感染（STI）的估计几率对其进行分类。在性延迟折扣（SDD）任务中，参与者对在可以立即进行无保护性行为的情况下，等待一段时间（例如3小时）与所选伴侣进行有保护性行为的可能性（0-100%）进行评分。在性概率折扣（SPD）任务中，参与者对在机会不确定（例如50%）的情况下进行有保护性行为的可能性进行评分，而此时他们可以肯定地进行无保护性行为（100%）。纳入最终分析的所有参与者都了解并对预防性传播感染持积极态度，因为他们可能会立即（或肯定）进行有保护的性行为。性延迟折扣任务中的432个延迟数据和性概率折扣任务中的488个概率数据结果表明，随着进行安全性行为的延迟时间和几率增加，参与者对安全性行为的偏好系统性地降低。然而，这种偏好会因参与者对其伴侣吸引力和性传播感染风险的认知而改变。
