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Psychogalvanic Reflex

Psychogalvanic reflex or PGR, is a type of limited sensory output that can be used to help detect changes in a participant?s emotional state, as an interface method for a virtual environment. The psychogalvanic reflex is essentially a change in the electrical resistance of the person?s skin that occurs a few milliseconds after the person has experienced an emotional state change, mentally. Currently, no method exists to determine which emotional state is now in charge.

PGR is also known as galvanic skin response, electrodermal response and skin conductance response. All four terms refer to the same thing.

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Related Dictionary Entries for Psychogalvanic Reflex:


Electrodermal Response

Galvanic Skin Response



Psychogalvanic Reflex


Skin Conductance Response


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