“…92 While physiognomy was being seen as an aid to the study of medicine in general, Lavater had in fact recommended any student of physiognomy to commence with the insane, since they afforded 'extreme and crucial instances' of this art. 93 By the mid-nineteenth century, GPI was claimed to be one such disorder where the face of the patient clearly divulged their illness, for, as one commentator noted: 'The facial expression of the paralytic is peculiar.' 94 George Robertson, Physician-Superintendent of the REA, later defined this expression as 'somewhat expressionless and heavy'.…”