galvanic skin response
Học thuậtThân thiện
Definition
Noun: A physiological reaction where the electrical characteristics of the skin change in reaction to emotional or psychological arousal, such as stress or anxiety. This change can be quantified by measuring either the skin's electrical resistance or the minute electrical currents produced by the body.
Usage
The term is used in scientific and medical contexts, particularly in psychology, psychophysiology, and lie detection, to describe an objective, measurable indicator of autonomic nervous system activity. - It is often referred to by its acronym, GSR. - It is a key component in polygraph (lie detector) tests. - It is also known as electrodermal activity (EDA).
Examples
Advanced Usage
- In Biofeedback: The galvanic skin response can be used in biofeedback therapy to help individuals learn to control their stress responses by monitoring their own physiological signals.
- In Neuromarketing: Companies sometimes use GSR measurements to gauge consumers' subconscious emotional reactions to advertisements or products.
Variants and Related Words
- Electrodermal Activity (EDA): A more modern and comprehensive term that encompasses all electrical phenomena in the skin, including the galvanic skin response.
- Skin Conductance Response (SCR): A specific term for the rapid change in skin conductance that constitutes the "response" part of GSR.
- Psychogalvanic Reflex: An older, synonymous term.
Synonyms
- Electrodermal Response
- Skin Conductance Response (SCR)
- Psychogalvanic Reflex
Related Phrases and Concepts
- Polygraph Test: A procedure that often uses galvanic skin response as one of its primary measures.
- Autonomic Arousal: The general state of physiological activation that the galvanic skin response helps to quantify.
- Fight-or-Flight Response: The body's emergency reaction system, of which changes in skin conductivity are a part.
Noun
- 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