The mapping of skin areas to internal organs is usually based on acupuncture point. One branch of GSR explanation interprets GSR as an image of activity in certain parts of the body. Fear, anger, startle response, orienting response and sexual feelings are all among the emotions which may produce similar GSR responses. The GSR is highly sensitive to emotions in some people. There is a relationship between sympathetic activity and emotional arousal, although one cannot identify the specific emotion being elicited. Most investigators accept the phenomenon without understanding exactly what it means. There has been a long history of electrodermal activity research, most of it dealing with spontaneous fluctuations. Galvanic skin response ( GSR), also known as electrodermal response ( EDR), psychogalvanic reflex ( PGR), or skin conductance response ( SCR), is a method of measuring the electrical resistance of the skin.
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