This came to me by way of a newsletter that I subscribe to. I note that it has been bought by the NHS. Shame that lack of funds prevented the one development that would have been of real value. If it were possible to wire these into the National Grid, I would forego some of the money spent on me in other directions. Oh - I also volunteer to press the button when the slightest tumesence is detected.
penile plethysmograph (PPG)
The penile plethysmograph (pluh-THIZ-muh-graf) (PPG) is a machine for measuring changes in the circumference of the penis. A stretchable band with mercury in it is fitted around the subject's penis. The band is connected to a machine with a video screen and data recorder. Any changes in penis size, even those not felt by the subject, are recorded while the subject views sexually suggestive or pornographic pictures, slides, or movies, or listens to audio tapes with descriptions of such things as children being molested.
Just in case my inclusion of this leads for calls for me to be so analysed (!), please read the whole thing.
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