Definition

Noun: A measurable physiological change in the skin's electrical properties, specifically its resistance or the generation of weak electrical currents, that occurs as an involuntary reaction to emotional or psychological stimuli such as stress, anxiety, or arousal.

Usage

The term is used primarily in psychology, psychophysiology, and lie detection to describe an objective, bodily indicator of emotional activation. - The researcher recorded a significant psychogalvanic response when the subject was shown frightening images. - In polygraph tests, the psychogalvanic response is one of several channels monitored for signs of deception.

Advanced Usage

• "to elicit a psychogalvanic response": to cause or trigger this specific physiological reaction.
  • The unexpected loud noise was designed to elicit a psychogalvanic response from the participants.
• Used in compound nouns like psychogalvanic response recording or psychogalvanic response measurement to specify the methodological aspect.

Variants and Related Words

• Galvanic Skin Response (GSR): The most common synonym and variant term.
• Electrodermal Activity (EDA): A broader, more modern term encompassing both spontaneous and stimulus-related skin conductance changes, including the psychogalvanic response.
• Skin Conductance Response (SCR): A specific term focusing on the change in the skin's ability to conduct electricity.

Synonyms

• Galvanic Skin Response (GSR)
• Electrodermal Response (EDR)
• Féré Phenomenon (in historical contexts)

Related Phrases and Compounds

• Psychogalvanic reflex: An alternative phrasing, emphasizing the automatic, reflex-like nature of the response.
• Psychogalvanic skin response: A fuller descriptive compound, explicitly linking the response to the skin.

Noun

1. a change in the electrical properties of the skin in response to stress or anxiety; can be measured either by recording the electrical resistance of the skin or by recording weak currents generated by the body