Electrodermal response
Electrodermal Response
Electrodermal response (pronunciation: /ɪˌlɛktrəʊˈdɜːrməl rɪˈspɒns/), also known as galvanic skin response (GSR), psychogalvanic reflex (PGR), skin conductance response (SCR), or skin conductance level (SCL), is a method of measuring the electrical resistance of the skin. There has been a long-standing interest in studying the electrodermal response in the field of psychophysiology.
Etymology
The term "electrodermal" is derived from "electro", relating to electricity, and "dermal", relating to the skin. "Response" refers to the physiological reaction to stimuli. The term "galvanic" is named after Luigi Galvani, an Italian physician, physicist and philosopher, who was recognized for his works on bioelectricity.
Definition
Electrodermal response is a phenomenon where the skin momentarily becomes a better conductor of electricity when either external or internal stimuli occur that are physiologically arousing. It is an indication of psychological or physiological arousal. This response can be measured through the use of two electrodes placed on the skin, and the measurement is often used in research involving psychology and human physiology.
Related Terms
- Psychophysiology: The branch of psychology that is concerned with the physiological bases of psychological processes.
- Bioelectricity: The electric phenomena which occur in living organisms and are a part of the essential processes of life.
- Skin Conductance: The measure of the skin's ability to conduct electricity.
- Physiological Arousal: The body's state of heightened physiological activity.
See Also
External links
- Medical encyclopedia article on Electrodermal response
- Wikipedia's article - Electrodermal response
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