School of Social Sciences, University of the West of Scotland, Paisley, UK.
J Sex Med. 2011 Oct;8(10):2793-9. doi: 10.1111/j.1743-6109.2011.02331.x. Epub 2011 Jun 15.
Recent studies have uncovered multiple markers of vaginal orgasm history (unblocked pelvic movement during walking, less use of immature psychological defense mechanisms, greater urethrovaginal space). Other markers (perhaps of prenatal origin) even without obvious mechanistic roles in vaginal orgasm might exist, and a clinical observation led to the novel hypothesis that a prominent tubercle of the upper lip is such a marker.
To examine the hypothesis that a prominent tubercle of the upper lip is associated specifically with greater likelihood of experiencing vaginal orgasm (orgasm elicited by penile-vaginal intercourse [PVI] without concurrent masturbation).
Women (N = 258, predominantly Scottish) completed an online survey reporting their frequencies of various sexual activities and corresponding orgasms, age, and the prominence of the tubercle of their upper lip. Social desirability response bias was also assessed.
Multivariate associations of lip tubercle prominence with vaginal orgasm (ever and past month consistency) and with orgasm by other means. RESULTS.: A prominent and sharply raised lip tubercle was associated with greater odds (odds ratio = 12.3) of ever having a vaginal orgasm, and also with greater past month vaginal orgasm consistency (an effect driven by the women who never had a vaginal orgasm), than less prominent lip tubercle categories. Lip tubercle was not associated with social desirability responding, or with orgasm triggered by masturbation during PVI, solitary or partner clitoral or vaginal masturbation, vibrator, or cunnilingus.
The results are discussed in light of the unique nature of vaginal orgasm and the possibility of prenatal developmental influences.
最近的研究揭示了阴道高潮史的多个标志物（行走时骨盆运动畅通无阻、较少使用不成熟的心理防御机制、更大的尿道阴道空间）。其他标志物（可能具有产前起源）即使在阴道高潮中没有明显的机械作用，也可能存在，一个临床观察导致了一个新的假设，即上唇的一个突出结节是这样的一个标志物。
检验这样一个假设，即上唇的一个突出结节与更大的经历阴道高潮的可能性（由阴茎阴道交（PVI）引起的高潮而没有同时自慰）相关。
女性（N=258，主要是苏格兰人）完成了一项在线调查，报告了她们各种性活动和相应高潮的频率、年龄，以及上唇结节的突出程度。还评估了社会期望反应偏差。
唇结节突出与阴道高潮（曾经和过去一个月的一致性）和其他方式的高潮的多变量关联。结果：一个明显和急剧上升的唇结节与更高的阴道高潮几率（优势比=12.3）相关，并且与过去一个月阴道高潮的一致性更高（这一效应是由从未有过阴道高潮的女性驱动的），而不是不那么突出的唇结节类别。唇结节与社会期望反应无关，也与 PVI 期间自慰触发的高潮无关，无论是单独还是伴侣的阴蒂或阴道自慰、振动器或舔阴。
结果根据阴道高潮的独特性质和产前发育影响的可能性进行了讨论。
