Skin Response Meter

 Human skin offers some resistance to current and voltage.This resistance changes with

the emotional state of the body. The circuit proposed here measures changes in
your skin resistance following changes in your mental state. In the relaxed state, the
resistance offered by the skin is as high as 2 mega-ohms or more, which reduces to
500 kilo-ohms or less when the emotional stress is too high. The
reduction in skin resistance is related to increased blood flow and permeability
followed by the physiological changes during high stress. This increases the
electrical conductivity of the skin.

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Sun, 20/03/2011 - 21:43