The Journal of reproductive medicine · 2008
Vaginal response to clitoral stimulation: identification of the clitorovaginal reflex.
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Shafik Ahmed, El Sibai Olfat, Shafik Ali A
Аннотация
OBJECTIVE: To investigate the hypothesis that glans clitoris (GC) penile buffeting effects contraction of the vaginal musculature and seems to increase arousal of the penis during coitus.
STUDY DESIGN: The response of the vaginal wall to GC electrical and mechanical stimulation was recorded in 26 healthy women (aged 36.8 +/- 6.7 years). The test was repeated after individual anesthetization of the GC and vagina using lidocaine gel and after application of bland gel instead of lidocaine.
RESULTS: The 2 vaginal electrodes recorded, at rest, slow waves followed or superimposed by action potentials. Wave parameters were similar from the 2 electrodes. Electrical or mechanical GC stimulation effected a significant increase in vaginal electromyographic (EMG) activity and pressure (p < 0.01). GC stimulation, while the vagina or GC had been separately anesthetized, produced no significant change, but there was a response following application of bland gel.
CONCLUSION: GC stimulation effected an increase in vaginal EMG activity and pressure and presumably indicated vaginal wall contraction. This action seems to be a reflex and is mediated through the clitorovaginal excitatory reflex. Vaginal wall contraction during coitus appears to effect penile arousal and, consequently, female sexual stimulation.
STUDY DESIGN: The response of the vaginal wall to GC electrical and mechanical stimulation was recorded in 26 healthy women (aged 36.8 +/- 6.7 years). The test was repeated after individual anesthetization of the GC and vagina using lidocaine gel and after application of bland gel instead of lidocaine.
RESULTS: The 2 vaginal electrodes recorded, at rest, slow waves followed or superimposed by action potentials. Wave parameters were similar from the 2 electrodes. Electrical or mechanical GC stimulation effected a significant increase in vaginal electromyographic (EMG) activity and pressure (p < 0.01). GC stimulation, while the vagina or GC had been separately anesthetized, produced no significant change, but there was a response following application of bland gel.
CONCLUSION: GC stimulation effected an increase in vaginal EMG activity and pressure and presumably indicated vaginal wall contraction. This action seems to be a reflex and is mediated through the clitorovaginal excitatory reflex. Vaginal wall contraction during coitus appears to effect penile arousal and, consequently, female sexual stimulation.