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Visual Erotica, EMG, and Sexual Psychophysiological Arousal (VESPA)

Visual Erotica, EMG, and Sexual Psychophysiological Arousal (VESPA)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01700361
Acronym
VESPA
Enrollment
15
Registered
2012-10-04
Start date
2012-10-31
Completion date
2013-02-28
Last updated
2017-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sexual Arousal

Keywords

sexual arousal, pelvic floor sEMG

Brief summary

This study will examine whether measurement of pelvic floor muscle sEMG activity is responsive to explicit sexual stimuli, and whether it correlates with self-reports of sexual arousal in healthy women. Participants' vaginal, labial and anal sEMG readings will be monitored during exposure to neutral, erotic and anxiety-provoking films. Participants will also be required to provide subjective ratings of sexual arousal before and after each film. If pelvic floor sEMG is validated as a psychophysiological measure, these findings may have important clinical and research implications by providing a greater understanding of the mechanisms involved in sexual arousal and for providing a relatively easy method of assessing sexual arousal in a clinical or research setting.

Detailed description

HYPOTHESES: 1. Investigators hypothesize that, relative to the neutral films, PFM EMG activity will significantly increase in response to the erotic film as measured by the labial, anal, and vaginal EMG probes. 2. Investigators hypothesize that, relative to the anxiety-provoking film, PFM EMG activity will significantly increase in response to the erotic film as measured by the labial, anal, and vaginal EMG probes. 3. Investigators hypothesize that continuously measured subjective sexual arousal (via the arousometer) will correlate significantly with PFM EMG activity during the erotic film.

Interventions

None listed

Sponsors

University of British Columbia
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
FEMALE
Age
19 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* Must be female, between the ages of 19-45 * Must be premenopausal * Must be previously sexually active * Must be fluent in English

Exclusion criteria

* Lack of fluency in English * Not female between the ages of 19-45 * Not previously sexually active * Any previous deliveries, either vaginal or by c-section * Any sexual arousal disorder * Any genital pain or pelvic pain disorders * Any bowel or bladder syndromes (e.g. interstitial cystitis, irritable bowel disease, Chron's disease) * Any urinary incontinence or pelvic organ prolapse * Undergone medically induced menopause * Undergone total or partial hysterectomy * Undergone surgery for incontinence or prolapse * Using estrogen suppression medication

Design outcomes

Primary

MeasureTime frameDescription
Pelvic floor muscle sEMG activityThis study involves 1 testing session approximately 20 minutes in durationChanges in pelvic floor muscle activity in responsive to exposure to explicit sexual stimuli will be assessed using pelvic floor surface electromyography (sEMG).

Secondary

MeasureTime frameDescription
Sexual ArousalThis study involves 1 testing session approximately 20 minutes in durationSelf-report sexual arousal will be measured with the Sexual Arousability Inventory (SAI ; Hoon, Hoon, & Wincze, 1976)
Sexual FunctionThis study involves 1 testing session approximately 20 minutes in durationSelf-reported sexual function will be measured using the Female Sexual Function Inventory (FSFI; Rosen et al., 2000) and the Derogatis Sexual Functioning Inventory (DSFI; Derogatis & Melisaratos, 1979).

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026