BIOPAC Deep breath and SCR/GSR increase

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Deep breath and SCR/GSR increase

Taking a very deep breath and then exhaling, reflexly elicits a general phasic sympathetic discharge causing a small increase in sweating, which increases electrical conductivity of the skin, thus resulting in the observed skin conductance response (SCR)/galvanic skin response (GSR).

Associated Applications: Psychophysiology

Associated Application Notes: 187 - Electrodermal Response Guidelines - GSR100C, 216 - Electrodermal Activity (GSR) Scoring Methods