A method of detecting psychological stress by evaluating manifestations of physiological change in the human voice wherein the utterances of a subject under examination are transduced to electrical signals and processed to emphasize selected characteristics which have been found to change with psycho-physiological...http://www.google.fr/patents/US3971034?utm_source=gb-gplus-shareBrevet US3971034 - Physiological response analysis method and apparatus
Physiological response analysis method and apparatus
