This study, from one of the many golden ages of psychology, now supplies data for researchers who wish to try to analyze the psychology of researchers who developed an apparatus which allows for the thoroughly automated monitoring and recording of shock-elicited vocalization in rats:
“An automated apparatus for recording shock elicited vocalization in the rat,” Hank Davis, David Perrott [pictured here], James Hubbard, Psychological Record, vol 22(1), 1972, pp. 71-74. The authors explain:
“Describes an apparatus which allows for the thoroughly automated monitoring and recording of shock-elicited vocalization in rats. The apparatus involves converting an auditory signal into an oscilloscope trace which, in turn, triggers a photoelectric relay and all the necessary recording equipment.”