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(Benedek et al., 2010) Collecting this information is relevant in applications because of the use of testing emotional effects on physiological responses. Electrodermal activity (EDA) refers to the variation of the electrical properties of the skin in response to sweat secretion. Perturbation of the autonomic nervous system, through rapid inspiration or electrical stimulation, induces a change in skin potential 6, 7, 14, 18. However, electrodermal activity and the galvanic skin response are not commonly measured things in places such as the medical field, or education. Sympathetic skin response (SSR, also referred to as galvanic skin response) is a measure of electrodermal activity and provides a surrogate measure of sympathetic cholinergic sudomotor function. Available in October 2015 For My Son Ayden :) New wearable smart Watch to. The relevant uses of measuring respiration rate as well as heart rate are quite common in a wide variety of applications. Measurements: Electrodermal Activity Sensor (EDA)/ Galvanic Skin Response. Psychogalvanic reflex (PGR), also called galvanic skin response (GSR), a change in the electrical properties of the body (probably of the skin) following noxious stimulation, stimulation that produces emotional reaction, and, to some extent, stimulation that attracts the subject’s attention and leads to an aroused alertness.The response appears as an increase in the electrical conductance of. A polygraph is a common instrument of measurement to calculate and document physiological aspects such as respiration rate, electrodermal activity, and heart rate.