Heiman J R, Rowland D L, Hatch J P, Gladue B A
Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle.
Arch Sex Behav. 1991 Apr;20(2):171-86. doi: 10.1007/BF01541942.
The unexplored possibility that a sexually induced endocrine response might prime further sexual arousal in women guided the current investigation. Healthy, premenopausal, heterosexual women in the follicular phase of their menstrual cycle were randomly assigned to either an experimental or a control group. The experimental group was exposed to a sexually explicit videotape, while the control group saw a nonerotic videotape. Ninety minutes later both groups saw a sexually explicit videotape. Vaginal vasocongestion and hormones (cortisol, prolactin, luteinizing hormone, testosterone) were measured continuously and subjective responses were sampled at 20-min intervals. Compared to controls, experimental subjects showed a greater amplitude and longer duration vaginal response to the second videotape. Subjective measures showed greater sexual response to the second erotic videotape compared to the first, an effect that was not mediated by the hormones measured here. Prolactin decreased significantly across the session for both groups, and several behavioral and affective responses were significantly correlated with hormonal levels. Commonalities and divergence with results of prior research point to the complexity and subtlety of endocrine interactions with sexual response as well as likely sex differences in hormone-behavioral interactions.
性诱导的内分泌反应可能引发女性进一步性唤起这一尚未被探索的可能性引导了当前的研究。处于月经周期卵泡期的健康、绝经前、异性恋女性被随机分为实验组或对照组。实验组观看一部露骨的性爱录像带，而对照组观看一部非色情录像带。90分钟后，两组都观看了一部露骨的性爱录像带。持续测量阴道血管充血和激素（皮质醇、催乳素、促黄体生成素、睾酮），并每隔20分钟采集主观反应。与对照组相比，实验组受试者对第二部录像带的阴道反应幅度更大、持续时间更长。主观测量结果显示，与第一部色情录像带相比，对第二部色情录像带的性反应更强，此处测量的激素并未介导这种效应。两组在整个实验过程中催乳素均显著下降，一些行为和情感反应与激素水平显著相关。与先前研究结果的共性和差异表明，内分泌与性反应相互作用的复杂性和微妙性，以及激素与行为相互作用中可能存在的性别差异。
