Some Observations on the Psychogalvanic Reflex
1 Department of Psychiatry, Christian Medical College & Hospital, Vellore, India
Some P.G.R. studies in a female subject who had bilateral cervical sympathectomy were described. It was found that sympathectomy abolished P.G.R. and that intra-arterial infusion of acetylcholine evoked marked P.G.R. changes in the sympathectomized limb. These findings support the theory that the P.G.R. is mediated through the cholinergic fibres of the sympathetic nervous system. Submitted on May 22, 1967
Mia: Was told by a heart specialist, jokingly that the patient can gain employment as spy after sympathectomy: it eliminates fear responses, abolishes the psychogalvanic response, and there will be no sudden jump in heart rate. No problems with lie-detectors....ever.
http://bjp.rcpsych.org/cgi/content/abstract/114/510/639