The Penile Plethysmograph Meets and Exceeds the Daubert Standard Whether the theory used by the expert can be and has been tested. Whether the theory or technique has been subjected to peer review. The known or potential rate of error of the method used. The degree of the methods or conclusion’s acceptance within the relevant […]
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What is a Penile Plethysmograph? Pronounced “pla-thiz-mo-graf”. The purpose of the Penile Plethysmograph (“PPG”) is to collect information on what and who you find sexually attractive. This information can then be used in a psychosexual evaluation that can help determine what kind of a risk a person accused or convicted of a sex crime might
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General information about the PPG
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Preparing for your PPG exam PPG Questionnaire Form PPG Consent Form
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[print-me] Penile plethysmography (PPG) is measurement of blood flow to the penis, typically used as a proxy for measurement of sexual arousal. It involves the measurement of the circumference of the penis with a mercury-in-rubber strain gauge. This is also called measurement of “tumescence”. The strain gauge is connected to a computer, which records electrical
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4. About the Penile Plethysmograph (PPG) • (first link) General information about the PPG • (second link) Criticism of older plethysmograph systems • (third link) The modern plethysmograph exceeds the Daubert standard • (fourth link) Research on the PPG
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