Analysis of simple GSR measures: differential diagnostic GSR signs in hypertonics, neurological patients and healthy controls.

A statistical analysis of GSR measures in three groups of Ss (Hypertonics-HP, Neurological patients-NP, and Controls-CG), subjected to standard electrodermal stimulation supports the existence of a differentiated inner connection among various GSR measures in the three groups. Latency in the CG was found negatively to correlate with amplitude of the derivational curve, while in the other two groups it proved to be an independent measure. It is assumed that the temporal GSR measures reflect its dynamic properties, while amplitude is an indicator of the overall level of the sympathetic nervous system and of the magnitude of changes in the membrane potentials of sweat glands. A point is also made of certain diagnostic applications for differentiating disorders due to organic causes from functional ones, within the framework of man's psychophysiological unit.