Wavelet denoising of vaginal pulse amplitude

Prause, Nicole; Williams, Kameryn J.; Bosworth, Ken W.

doi:10.1111/j.1469-8986.2009.00941.x

Cited by 11 publications

(15 citation statements)

References 46 publications

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“…The amplitude of each peak was measured and peak amplitude was averaged within 15 s time bins to be consistent with the sampling restrictions of the Rigiscan (see above). The first author visually deleted signal artifacts, a technique demonstrated to yield comparable outcomes to a standardized, wavelet-based artifact reduction technique (Prause, Williams, & Bosworth, 2010).…”

Section: Genital Responsementioning

confidence: 99%

The Effects of Acute Ethanol Consumption on Sexual Response and Sexual Risk-Taking Intent

2011

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Two theories of sexual risk taking (disinhibition and alcohol myopia) were tested using genital measures of sexual response and computer measures of sexual risk propensity. A total of 44 men and women completed two sessions comparing responses to erotic films while consuming alcohol (breath alcohol doses were .025 g/kg and .08 g/kg) or juice alone. After consuming alcohol, more sexual arousal was reported in response to neutral films and at a breath alcohol level of .08 g/kg as compared to no alcohol. Genital responses for men and women increased during sexual films, but men did not respond as strongly when breath alcohol level was .08 g/kg. Intentions to have intercourse with a new partner at baseline predicted the level of sexual arousal reported. As self-reported sexual arousal increased in response to sexual films and higher alcohol dose, the intent to engage in intercourse with a new partner increased. Alcohol dose was not related to later sexual intercourse intentions. With no direct relationship of alcohol and intercourse intentions, results appear more consistent with a disinhibition model of sexual arousal.

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Section: Genital Responsementioning

confidence: 99%

The Effects of Acute Ethanol Consumption on Sexual Response and Sexual Risk-Taking Intent

2011

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“…These excerpts showed a consensual, erotic, heterosexual encounter, edited to equal parts kissing/foreplay, oral sex being performed on the man and then the woman, and penile–vaginal intercourse. To establish a baseline, a documentary about underwater creatures [22] was shown for 15 minutes before the start of the sexual video [26].…”

Section: Methodsmentioning

confidence: 99%

“…This approach would be problematic because of the impact of artifacts. Artifacts are not restricted to a particular frequency band [26]. Levin and Wylie have suggested a different quantification method based on the supposition that vasomotion drives apparent changes in vasodilation [27].…”

Section: Introductionmentioning

confidence: 99%

“…The movement artifacts will be removed faster than manual methods as Prause et al. [26] reported. Other drawbacks of the algorithm proposed by Prause et al.…”

Section: Introductionmentioning

confidence: 99%

“…Other drawbacks of the algorithm proposed by Prause et al. [26] include improper selection of wavelet basis and type of transform.…”

Section: Introductionmentioning

confidence: 99%

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Female Sexual Responses Using Signal Processing Techniques

Rafiee

Michaelsen

2009

The Journal of Sexual Medicine

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Introduction An automatic algorithm for processing vaginal photoplethysmograph signals could benefit researchers investigating sexual behaviors by standardizing interlaboratory methods. Female sexual response does not co-vary consistently in the self-report and physiological domains, making the advancement of measurements difficult. Automatic processing algorithms would increase analysis efficiency. Vaginal pulse amplitude (VPA) is a method used to measure female sexual responses. However, VPA are problematic because of the movement artifacts that impinge on the signal. This article suggests a real-time approach for automatic artifact detection of VPA signals. The stochastic changes (artifacts) of VPA are characterized mathematically in this research, and a method is presented to automatically extract the frequency of interest from VPA based on the autocorrelation function and wavelet analysis. Additionally, a calculation is presented for the vaginal blood flow change rate (VBFCR) during female sexual arousal using VPA signals. Aim The primary aim is to investigate the experimental VPA measures based on theoretical techniques. Particularly, the goal is to introduce an automatic monitoring system for female sexual behaviors, which may be helpful for experts of female sexuality. Methods The methods in the research are divided into experimental and theoretical parts. The VPA in twenty women was measured by a common vaginal photoplethysmography system in two conditions. Each subject was tested watching a neutral video followed by an erotic video. For theoretical analysis, an approach was applied based on wavelet transform to process the VPA. Main Outcome Measures Introduction of an automatic and real-time monitoring system for female sexual behaviors, automatic movement artifact detection, VBFCR, first application of wavelet transform, and correlogram in VPA analysis. Results The natural and significant frequency information of VPA signals was extracted to automatically detect movement artifacts and to investigate the effects of erotic videos on female sexual responses. Conclusions The computerized automatic systems based on advanced math and statistics have several advantages for human sexuality research such as: savings in time and budget; increase in the accuracy of results; and reduction in human errors for data analysis.

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Devices and Methods to Measure Female Sexual Arousal

Kukkonen¹

2015

Sexual Medicine Reviews

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Wavelet denoising of vaginal pulse amplitude

Cited by 11 publications

References 46 publications

The Effects of Acute Ethanol Consumption on Sexual Response and Sexual Risk-Taking Intent

The Effects of Acute Ethanol Consumption on Sexual Response and Sexual Risk-Taking Intent

Female Sexual Responses Using Signal Processing Techniques

Devices and Methods to Measure Female Sexual Arousal

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