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Which of the following instrument is used for measuring the average activity of sweat glands?(a) EOG(b) ECG(c) GSR(d) PCGThis question was posed to me at a job interview.My question is based upon Cardiac Arrhythmias in chapter Arrhythmia and Ambulatory Monitoring Instruments of Biomedical Instrumentation

Answer»

The CORRECT option is (c) GSR

The BEST I can explain: Electrodermal activity is measured in TWO ways: BSR (basal skin response) and GSR (galvanic skin response) is a measure of the average activity of the sweat glands and is a measure of the phasic activity (the high and LOW POINTS) of these glands.



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