Department of Psychology, Valparaiso University, Valparaiso, IN 46383, USA.
Int J Impot Res. 2010 Sep-Oct;22(5):318-24. doi: 10.1038/ijir.2010.22. Epub 2010 Sep 23.
This study compared genital and penile response patterns in men with and without premature ejaculation (PE) so as to identify the potential anomalous psychosomatic relationships among men with PE. Genital and heart rate response profiles of 25 men with PE were compared with those of 13 age-matched sexually functional counterparts during visual sexual stimulation presented in combination with vibrotactile penile stimulation. Although no differences were found between men with PE and controls on maximum penile circumference change, overall penile response was significantly lower in the PE group and PE men who ejaculated during the session exhibited shorter latencies to maximum circumference change. Furthermore, significant differences were found between groups in patterns of heart rate. These findings indicate differences in physiological responses between men with PE and sexually functional counterparts during erectile tumescence and progression toward ejaculation. Such differences might be explained by 'premature' sympathetic activation during the sexual response cycle in men with PE, thereby diminishing parasympathetically controlled penile response and triggering sympathetically mediated seminal emission prematurely.
本研究比较了早泄（PE）患者和非早泄患者的生殖器和阴茎反应模式，以确定 PE 患者潜在的异常身心关系。在视觉性刺激与振动阴茎刺激相结合的情况下，比较了 25 名早泄患者和 13 名年龄匹配的性功能正常对照者的生殖器和心率反应特征。尽管在最大阴茎周长变化方面，PE 患者和对照组之间没有差异，但在整个阴茎反应方面，PE 组明显较低，并且在会议期间射精的 PE 男性达到最大周长变化的潜伏期更短。此外，两组在心率模式上存在显著差异。这些发现表明，在勃起充盈和向射精进展期间，PE 患者和性功能正常对照者的生理反应存在差异。PE 患者在性反应周期中可能存在“过早”的交感神经激活，从而减弱了副交感神经控制的阴茎反应，并过早引发交感神经介导的精液排放，这可以解释这些差异。
