Abstract:A 3 electrode monopolar rheoencephalograph was employed to produce a 15 min record of electrical impedance plethysmographic pulse-volume waves in 139 healthy subjects and 782 patients belonging to 15 psychiatric syndromes. Parameters of amplitude, percent rise time and average inflow angle were hand-measured and their means obtained for 30 waveforms throughout each record. Results obtained depended significantly upon chronological age and in some cases on gender. Mental health was found clearly distinguishable… Show more
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