A GSR sensor allows us to measure sweat gland activity, which is related to emotional arousal. To measure GSR, we take advantage of the electrical properties of the skin. ... The conductance makes the signal interpretation easier, since the greater the sweat gland activity, the higher the skin conductance.

How does galvanic skin response module works?

As GSR measurements work by detecting the changes in electrical (ionic) activity resulting from changes in sweat gland activity, the electrodes must be sensitive to these changes, and able to transmit that information to the recording device. ... Skin conductance is captured using skin electrodes which are easy to apply.

What kind of sensor is GSR sensor?

The GSR sensor is kind of ohmmeter as it measures the electric conductance between the two points. Sweat glands of our body are controlled by nervous system. Due to different states of emotions such as stressed or relaxed, sweat produced by these glands vary. Skin conductivity changes as per secretion of sweat.