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What is used to measure and record BSR and GSR?

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in Biomedical Instrumentation by (76.6k points)
What is used to measure and record BSR and GSR?

(a) Tape recorder

(b) Amplifier

(c) Silver-Silver electrode

(d) Piezoelectric device

I got this question during an interview.

My enquiry is from Cardiac Arrhythmias in division Arrhythmia and Ambulatory Monitoring Instruments of Biomedical Instrumentation

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Best answer
Correct option is (c) Silver-Silver electrode

Best explanation: The GSR is measured most conveniently at the palms of the hand, where the body has the highest concentration of sweat glands. The measurement is made using a dc current source. Silver-silver electrodes are used to measure and record the BSR and GSR.

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