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EDA - Electrodermal Activity / (GSR Galvanic Skin Response)
Measure emotions through skin conductance for more insights
EDA - Electrodermal Activity also known as Galvanic Skin Response (GSR) measures the electrical activity conducted through sweat glands in the skin.
This give you insights of emotion arousal and stress.
How does it work?
Electrodermal activity-EDA / Galvanic skin response changes in physical or emotional state.
Electrodermal activity-EDA data is collected by two electrodes attached to two separate fingers on one hand. These electrodes detect stimuli in the form of changes in moisture, which increase skin conductance and changes the electric flow between the two electrodes. Therefore, GSR data is dependent on sweat gland activity, which is correlated to participant level of stress (Bakker, Pechenizkiy, & Sidorova, 2011). PPG signals are collected through photodetectors on skin surfaces (usually a finger or ear-lobe) which measure volumetric variations in blood circulation, giving an accurate and non-intrusive method to monitor participant heart rates (Castaneda, Aibhlin, Ghamari, Soltanpur, & Nazeran, 2018). Together, GSR and PPG data produce an accurate depiction of participant level of stress.
GSR-EDA-electrodermal-activity