Department of Psychology, University of British Columbia, Vancouver, Canada.
Department of Psychology, University of Toronto Mississauga, Mississauga, Canada.
PLoS One. 2021 May 12;16(5):e0251074. doi: 10.1371/journal.pone.0251074. eCollection 2021.
Asexuality is defined as a unique sexual orientation characterized by a lack of sexual attraction to others. This has been challenged, with some experts positing that it is better explained as a sexual dysfunction. Sexual Interest/Arousal Disorder (SIAD) is characterized by absent/reduced sexual interest/arousal paired with personal distress, with two subtypes: acquired and lifelong. Research suggests that while asexuality and acquired SIAD are distinct entities, there may be overlap between asexuality and lifelong SIAD. Findings from studies using eye-tracking and implicit association tasks suggest that these methodologies might differentiate these groups on the basis of their neural mechanisms. However, no study has compared their cognitive processing of sexual cues, and the literature on lifelong SIAD is minimal. The current study tested differences in the cognitive processing of sexual cues between asexual individuals and women with SIAD (lifelong and acquired). Forty-two asexual individuals and 25 heterosexual women with SIAD (16: acquired; 9: lifelong) completed three study components: a visual attention task, a Single Category-Implicit Association Task, and the sex semantic differential. ANOVAs examined group differences in: 1) visual attention to erotic cues, 2) implicit appraisals of sexual words, and 3) explicit appraisals of sex. Women with SIAD displayed a controlled attention preference for erotic images and areas of sexual contact, with longer dwell times to these areas relative to asexual individuals, who did not gaze preferentially at erotic cues. For implicit appraisals, all groups demonstrated negative-neutral implicit associations with sexual words. For explicit appraisals, women with acquired SIAD reported more positive evaluations of sex relative to asexual individuals and women with lifelong SIAD. This project sheds light on key differences between asexuality and low desire, and has implications for best clinical practice guidelines for the assessment of lifelong SIAD.
无性恋被定义为一种独特的性取向,其特征是缺乏对他人的性吸引力。这一观点受到了挑战,一些专家认为,无性恋更好的解释是一种性功能障碍。性兴趣/唤起障碍(SIAD)的特征是性兴趣/唤起缺失/减少,同时伴有个人痛苦,有两种亚型:获得性和终身性。研究表明,虽然无性恋和获得性 SIAD 是不同的实体,但无性恋和终身性 SIAD 之间可能存在重叠。使用眼动追踪和内隐联想任务的研究结果表明,这些方法可能基于其神经机制来区分这些群体。然而,没有研究比较过他们对性线索的认知处理,而且终身性 SIAD 的文献也很少。本研究测试了无性恋个体和 SIAD(终身和获得性)女性在性线索认知处理方面的差异。42 名无性恋个体和 25 名有 SIAD(16 名:获得性;9 名:终身性)的异性恋女性完成了三个研究组成部分:视觉注意力任务、单一类别内隐联想任务和性语义差异。方差分析检验了组间差异:1)对色情线索的视觉注意力,2)对性词汇的内隐评价,和 3)对性的外显评价。患有 SIAD 的女性对色情图像和性接触区域表现出控制注意力的偏好,与无性恋个体相比,她们对这些区域的注视时间更长,而无性恋个体则不会优先注视色情线索。对于内隐评价,所有组对性词汇都表现出消极-中性的内隐联想。对于外显评价,与无性恋个体和终身性 SIAD 女性相比,获得性 SIAD 女性报告对性的评价更为积极。本项目揭示了无性恋和低欲望之间的关键差异,对终身性 SIAD 评估的最佳临床实践指南具有重要意义。