Polysomnographic recordings were obtained in 10 subjects (5 men and 5 women) for three conditions: following masturbation with orgasm, following masturbation without orgasm, and after reading neutral material. The analysis of several sleep parameters did not reveal any effect of masturbation on sleep. These results suggest that physiological changes that occur during masturbation, with or witho...

This review, with 21 figures and 1 video, aims to clarify some important aspects of the anatomy and physiology of the female erectile organs (triggers of orgasm), which are important for the prevention of female sexual dysfunction. The clitoris is the homologue of the male's glans and corpora cavernosa, and erection is reached in three phases: latent, turgid, and rigid. The vestibular bulbs cau...

In order to examine factors associated with orgasm in heterosexual encounters, we analyzed data from the Australian Study of Health and Relationships, a national telephone survey of sexual behavior and attitudes and sexual health knowledge carried out in 2001-2002 with a representative sample of 19,307 Australians aged 16 to 59. Respondents were asked whether at their last sexual encounter they...

■ One Advantage of Being Homo sapiens Unlike other mammals, human females are continuously responsive to and available for sexual activity, independent of ovulation. ■ Biological Foundations for Sexual Arousal and Response The brain and central nervous system, including the five senses, play roles of varying importance in human sexual arousal and response. ■ The Sexual Response Cycle There are ...

The current study tested the hypothesis that women pretend orgasm as part of a broader strategy of mate retention. We obtained self-report data from 453 heterosexual women (M age, 21.8 years) in a long-term relationship (M length, 32.8 months) drawn from universities and surrounding communities in the southeastern United States. The results indicated that (1) women who perceived higher risk of ...

Past findings suggest links between orgasms and testosterone (T), as well as sexuality and estradiol (E), and we examined hormone-orgasm links in this study via two hypotheses (below). Participants were 86 women and 91 men who provided a saliva sample and completed a demographics questionnaire, the Orgasm Checklist (Mah and Binik, 2002), the Hurlbert (1991) Index of Sexual Assertiveness, and th...

We present the results of a study designed to empirically test predictions derived from two hypotheses regarding human female orgasm behavior as an evolved communicative trait or signal. One hypothesis tested was the female fidelity hypothesis, which posits that human female orgasm signals a woman's sexual satisfaction and therefore her likelihood of future fidelity to a partner. The other was ...

BACKGROUND Woman's orgasm plays a vital role in sexual compatibility and marital satisfaction. Orgasm in women is a learnable phenomenon that is influenced by several factors. OBJECTIVE The aim of this study is exploring obstacles to orgasm in Iranian married women. MATERIALS AND METHODS This qualitative study with directed content analysis approach was conducted in 2015-2016, on 20 Iranian...

F ew topics in psychology are the source of as much pleasure and anxiety as orgasm. However, the precise functions and evolutionary origins of orgasm remain a mystery. The conditions shaping sexual climax may be particularly complex in humans, whose sexual behavior is characterized by cultural shaping, abstract goals, and frequent non-reproductive motivations. In light of the fact that 'nothing...