Sawatsky Megan L, Dawson Samantha J, Lalumière Martin L
School of Psychology, University of Ottawa, Canada.
Department of Psychology, Queen's University, Kingston, Canada.
Biol Psychol. 2018 Apr;134:103-113. doi: 10.1016/j.biopsycho.2018.02.003. Epub 2018 Feb 12.
Women's genital responses are sensitive to the presence and intensity of sexual cues, yet some stimulus features (e.g., male vs. female actors, consensual vs. non-consensual interactions) have little influence on the magnitude of response-a phenomenon called low cue-specificity. Genital responses are typically assessed using vaginal photoplethysmography, a measure of vaginal vasocongestion, itself a precursor to lubrication. One explanation for low cue-specificity is the preparation hypothesis: Women genitally respond to almost all sexual cues because lubrication functions to protect genital organs from potential injury should vaginal penetration occur. In order to test the preparation hypothesis, both vaginal vasocongestion and introital lubrication were assessed in a sample of 20 women in response to sexually explicit films. While patterns of vasocongestion were consistent with low cue-specificity for gender cues and type of sexual activity, lubrication was specific to women's most preferred sexual stimulus categories. These results are inconsistent with the preparation hypothesis.
女性的生殖器反应对性暗示的存在和强度敏感，但一些刺激特征（如男性与女性演员、双方自愿与非双方自愿的互动）对反应程度影响很小——这一现象被称为低线索特异性。生殖器反应通常使用阴道光电容积描记法进行评估，这是一种测量阴道血管充血的方法，而血管充血本身又是润滑的前奏。对低线索特异性的一种解释是准备假说：女性在生殖器方面对几乎所有性暗示都会产生反应，因为如果发生阴道插入，润滑的作用是保护生殖器官免受潜在伤害。为了检验准备假说，对20名女性的样本进行了评估，测量她们在观看色情影片时的阴道血管充血和阴道口润滑情况。虽然血管充血模式与性别线索和性活动类型的低线索特异性一致，但润滑对女性最喜欢的性刺激类别具有特异性。这些结果与准备假说不一致。
