Galvanic Skin Response


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia.

galvanic skin response

[gal′van·ik ′skin ri‚späns]
(physiology)
The electrical reactions of the skin to any stimulus as detected by a sensitive galvanometer; most often used experimentally to measure the resistance of the skin to the passage of a weak electric current. Also known as electrodermal response.

Galvanic Skin Response

 

psychogalvanic reflex, a change in potential difference or electric resistance between two points on the skin in response to various stimuli or emotional excitement; first described by the Russian physiologist I. R. Tarkhanov in 1889.

Galvanic skin response is usually recorded by measuring the indexes between the palmar and dorsal surfaces of the hand or between the palmar surfaces of both hands. The galvanic skin response is a negative shift of biopotential or a decrease in electrocutaneous resistance caused by the activity of the sweat glands just before perspiration. This activity is induced by nervous impulses proceeding from the central nervous system through the sympathetic fibers. The central structures responsible for the galvanic skin response are found in the reticular formation of the mesencephalon and hypothalamus and are activated by the higher sections of the brain (chiefly the limbic system—the most important part of the brain’s emotional apparatus). The galvanic skin response is a component of the orientation reaction, that is, the response to unexpected change characterizing the processes leading to any kind of new action.

L. P. LATASH

References in periodicals archive ?
In this paper, among recorded signals Galvanic Skin Response signals have been considered.
This conclusion is further supported by the greater increase in galvanic skin response, an index of general sympathetic nervous system activation.
The results show that the level of white noise did not have a significant effect on Galvanic Skin Response.
1 million dollars for testing testing galvanic skin response bracelets to see if they can measure whether students find their teachers engaging, the Daily Mail reported.
The company takes a technology-neutral approach to analysis, applying a variety of techniques, including EMG, fMRI, eye tracking, galvanic skin response, EEG and reaction time, selecting those that best meet the needs of the marketing challenge to be addressed.
The system must be able to obtain the following data: Human Physiology: EEG ECG Heart-rate Galvanic skin response Blood O2 content etc.
This is done through two gold plated sensors that measure your galvanic skin response.
Sensum pairs a wrist-mounted galvanic skin response (GSR) sensor, made by Dublin company Shimmer Research, via Bluetooth to a smartphone with the Sensum app installed, the New Scientist reported.
Combined with pixel-level eye tracking and galvanic skin response measurements, this type of neurological testing guarantees the most precise, detailed, reliable, and actionable form of market research.
NeuroFocus' study analyzed consumers' brainwave activity and combined those findings with eye tracking and galvanic skin response measurements to arrive at results that reveal how print and online coupons fared in three primary neurological measurements: