Proposed is a method of multichannel GSR detection for improving measurement accuracy and noise/artifact rejection in measurement of the galvanic skin response on the skin of an individual. The method comprises multichannel GSR signal detection with at least two electrode pairs that are attached to a body of an individual in contact with the skin in different locations, wherein the GSR signals are measured and recorded while the level of excitation of the nervous system of the individual varies. The method is based on the fact that only events that show high temporal correlation in two or more signal registration channels are considered to be physiological GSR reactions. Time-domain correlation allows not only improved detection of high-amplitude events but also improved sensitivity to smaller events that were ignored in standard bipolar GSR recording.
