EDA
EDA (Electrodermal Activity)
Electrodermal Activity (EDA), also known as Galvanic Skin Response (GSR), is a method used in psychophysiology to measure 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.
Pronunciation
Electrodermal Activity: /ɪˌlɛktrəʊˈdɜːrməl ˈæktɪvɪti/
Etymology
The term "Electrodermal Activity" is derived from the words "electro", referring to electricity, "dermal", pertaining to the skin, and "activity", indicating a state of action or movement.
Related Terms
- Psychophysiology: The branch of psychology that is concerned with the physiological bases of psychological processes.
- Sympathetic Nervous System: Part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise blood pressure.
- Galvanic Skin Response: A method of measuring the electrical resistance of the skin.
See Also
External links
- Medical encyclopedia article on EDA
- Wikipedia's article - EDA
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