NB-GSR:The GSR sensor provides a measure of skin resistance or skin conductance when connected to a NeXus signal acquisition device, which is influenced by the autonomic activation of sweat glands in the skin. The sensor output is not intended to be used for vital monitoring purposes.The device is designed for medical use, not restricted to a specific medical indication, for acquisition of physiological signals. The device is intended to be used by, or under supervision of, a health professional within a clinical environment.
An electronic instrument designed to determine a patient’s electrodermal activity (EDA) [also known as galvanic skin response (GSR), psychogalvanic reflex (PGR), skin conductance response (SCR)] by measuring the electrical conductance of the skin and the tissue path between electrodes placed on the surface of the body (e.g., hands, feet, head), whereby a small electrical current is typically applied. It is used to assess changes in psychophysiological indicators related to autonomic sympathetic activity and emotional states (e.g., fear, startle, pain); sudomotor dysfunction and subsequent reduced EDA have been associated with various conditions (e.g., neuropathy in diabetic patients).