Labial and vaginal blood volume responses to visual and tactile stimuli
- 84 Downloads
Five women volunteers participated in two experimental sessions designed to evaluate the response patterns of two objective psychophysiological measures of women's sexual arousal to different methods (and intensities) of sexual stimulation (i.e., an erotic film and manual self-stimulation). A vaginal photoplethysmograph was used to measure vaginal blood volume response and a labial thermistor-clip was used to measure temperature changes of one of the minor labia. Both measures usually covaried in a highly significant manner during both types of stimulation, with the largest responses typically being evoked by the physical stimulation. The response patterns for the two measures were also similar following both methods of stimulation if the woman did not experience orgasm; both measures decreased to some extent after the stimulation ended but usually remained well above the prestimulatory baseline. Orgasm, however, affected the two genital measures differently. The vaginal blood volume measure decreased dramatically during the reported orgasm, possibly because of vaginal contractions, and then increased to at least the preorgasmic level that occurred during the stimulation. The labial measure did not change during the reported orgasm but decreased relatively rapidly soon after.
Key wordsvaginal blood volume photoplethysmography labial temperature change orgasm female sexuality
Unable to display preview. Download preview PDF.
- Gillan, P., and Brindley, G. S. (1979). Vaginal and pelvic floor responses to sexual stimulation.Psychophysiology 16: 471–481.Google Scholar
- Heiman, J. R. (1977). A psychophysiological exploration of sexual arousal patterns in females and males.Psychophysiology 14: 266–274.Google Scholar
- Henson, D. E., Rubin, H. B., Henson, C., and Williams, J. R. (1977). Temperature change of the labia minora as an objective measure of human female eroticism.J. Behav. Ther. Exp. Psychiat. 8: 401–410.Google Scholar
- Hoon, P. W., Wincze, J. P., and Hoon, E. F. (1976). Physiological assessment of sexual arousal in women.Psychophysiology 13: 196–204.Google Scholar
- Levin, R. J., and Wagner, G. (1978). Haemodynamic changes of the human vagina during sexual arousal assessed by a heated oxygen electrode.J. Physiol. 275: 23P–24P.Google Scholar
- Masters, W. H., and Johnson, V. E. (1966).Human Sexual Response. Little, Brown, Boston.Google Scholar
- Sintchak, G., and Geer, J. H. (1975). A vaginal photoplethysmograph system.Psychophysiology 12: 113–115.Google Scholar
- Stock, W. E., and Geer, J. H. (1980). A study of fantasy based sexual arousal in women.Psychophysiology 17: 297 (Abstract).Google Scholar