A term from the 1930s for the polygraph that consisted of the pneumograph, sphygmograph, and a stimulus marker. Sometimes referred to as the Berkeley Psychograph, the Lee Polygraph, and the cardio-pneumo-psychograph.
A term from the 1930s for the polygraph that consisted of the pneumograph, sphygmograph, and a stimulus marker. Sometimes referred to as the Berkeley Psychograph, the Lee Polygraph, and the cardio-pneumo-psychograph.