Orgasm in women in the laboratory—quantitative studies on duration, intensity, latency, and vaginal blood flow

  title={Orgasm in women in the laboratory—quantitative studies on duration, intensity, latency, and vaginal blood flow},
  author={Roy J Levin and Gorm Wagner},
  journal={Archives of Sexual Behavior},
  • R. Levin, G. Wagner
  • Published 1 October 1985
  • Psychology, Medicine
  • Archives of Sexual Behavior
Sexual arousal by clitoral self-stimulation was used by healthy, young adult women volunteers (n =28) to induce orgasm in the laboratory. The duration of the orgasm was obtained using the subject's verbal indication of its start and finish. The estimated duration and the subjective experience of the orgasm self-graded on a 5-point scale were also obtained in a number of subjects. Vaginal blood flow was assessed by the power consumption needed to keep a heated oxygen electrode, held on the… 
Heart Rate Change as Evidence for Vaginally Elicited Orgasm and Orgasm Intensity
The purposes of this study were a) to further replicate previous findings on vaginal eroticism, using heart rate change as corroborative evidence for the subjective perception of sexual arousal and
The effect of Clitstim (Vielle™) on sexual response induced by masturbation in female volunteers
Abstract Clitstim (Vielle™) is a finger-cot shaped device that has been designed to increase digital clitoral stimulation when worn on a finger. Effects on the sexual response of 16 female volunteers
The role of the Grafenberg Spot and female ejaculation in the female orgasmic response: an empirical analysis.
A series of variables thought to be associated with perceptions of the Grafenberg Spot and its relationship, if any, to the female orgasmic response and female ejaculation were explored.
Women's Orgasm
Cognitive-behavioral therapy for anorgasmia focuses on promoting changes in attitudes and sexually relevant thoughts, decreasing anxiety, and increasing orgasmic ability and satisfaction, and studies of brain imaging indicate increased activation at orgasm.
Vagino-levator reflex: description of a reflex and its role in sexual performance.
  • A. Shafik
  • Medicine
    European journal of obstetrics, gynecology, and reproductive biology
  • 1995
The levator contraction upon penile thrusting leads to genital responses that could facilitate sexual performance that comprise widening of the vaginal introitus, vaginal elongation and ballooning of the upper vagina as well as uterine elevation.
Female ejaculation: Perceived origins, the Grafenberg spot/area, and sexual responsiveness
A series of variables thought to be associated with female ejaculation, including expulsion of fluid during orgasm and its relationship, if any, to a sensitive anatomic area (Grafenberg spot), were examined.
The human female orgasm: a critical evaluation of its proposed reproductive functions
The review critically examines two functional claims involving the human female orgasm. The first is that it is involved in the transport of spermatozoa by its release of oxytocin to create uterine
The female sexual response revisited: Understanding the multiorgasmic experience in women
The findings indicated that 42.7% of the respondents had experienced multiple orgasms and that several significant differences existed between single-orgasmic and multiorgasmic women.
Correlation between insula activation and self-reported quality of orgasm in women
The critical correlation between self-reports of orgasm quality and activation of the left anterior insula, a part of the partner-related neural network known to play a pivotal role in somatic processes, suggests the importance of somatic information in the integration of sexual experience.
Physiological correlates of imagery-induced orgasm in women
Evidence is provided that orgasm from self-induced imagery and genital self-stimulation can each produce significant and substantial net sympathetic activation and concomitant significant increases in pain thresholds and that a reassessment of the nature of orgasm is warranted.


Vaginal blood volume responses during masturbation
The present study was designed to determine if the photoplethysmograph successfully detected sexual arousal to physical stimulation and further to determine the nature of vaginal blood volume responses during masturbation, the resultant orgasm, and a subsequent recovery or resolution period.
Estimating the duration of sexual behavior: A laboratory analog study
  • E. Levitt
  • Psychology, Medicine
    Archives of sexual behavior
  • 1983
It is suggested that the mean young adult male orgasm latency is probably in the range of 2–3 minutes, and married subjects tended to regard both time periods as above average, compared to single subjects.
The female orgasm: Pelvic contractions
Eleven nulliparous women manually self-stimulated to orgasm, each on three separate occasions, and women of different types showed marked differences in orgasm duration and number of contractions.
Oxygen tension of the vaginal surface during sexual stimulation in the human.
An oxygen electrode was maintained by suction on the vaginal wall in seven women and the increased oxygen tension may be one of the factors that enhance of even initiate the motility of spermatozoa when deposited intravaginally.
Vaginal Blood Flow During Sexual Stimulation
In 7 female volunteers the local vaginal blood flow was calculated from the washout of the radioactive inert gas xenon 133 after an intraepithelial injection. During rest a monoexponential washout
Effect of atropine and methylatropine on human vaginal blood flow, sexual arousal and climax.
The present experiments suggest that it is not an atropine sensitive traditional muscarinic transmission, as in women when no drugs are applied and orgasm was unaffected as well.
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The Psychobiology of Sexual Experience
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The Kinsey data: Marginal tabulations of the 1938-1963 interviews conducted by the Institute for Sex Research
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