GSR Meter app for iPhone and iPad

The application displays the data from the device Stress Meter, which measures the galvanic skin response of the human body, as well as data recorded during therapy or training sessions, to the application via a local area network.
Skin conductance, also known as galvanic skin response (GSR), electrodermal response (EDR), psychogalvanic reflex (PGR), skin conductance response (SCR) or skin conductance level (SCL), is a method of measuring the electrical conductance of the skin, which varies with its moisture level. This is of interest because the sweat glands are controlled by the sympathetic nervous system, so skin conductance is used as an indication of psychological or physiological arousal. Therefore, if the sympathetic branch of the autonomic nervous system is highly aroused, then sweat gland activity will also increase, which in turn increases skin conductance. In this way, skin conductance can be used as a measure of emotional and sympathetic responses.There has been a long history of electrodermal activity research, most of it dealing with spontaneous fluctuations or reactions to stimuli. http://en.wikipedia.org/wiki/Galvanic_skin_response