Accession Number : ADA077929


Title :   Feasibity of Using a Measure of Heart Rate Change in Human Adults to Signal Occurrence of Tone


Descriptive Note : Research memo.


Corporate Author : ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA


Personal Author(s) : Dressel, J Douglas ; Kaplan, Michael ; Shields, Joyce L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a077929.pdf


Report Date : Nov 1977


Pagination or Media Count : 35


Abstract : An organism's overt response to a stimulus is the most evident, but not the sole, response elicited by that stimulus. A covert response could be a more reliable and more sensitive response to the stimulus than the traditionally monitored overt response. Using group statistics, a change in heart rate (HR) of human subjects exposed to auditory signals has been reported. If HR change is a reliable response, as previous research would suggest, then it may be possible to use its occurrence to signal the presentation of a tone. A reliable HR response (HR-R) would be extremely valuable in auditory signal detection situations, where operators often become drowsy and fail to respond overtly to auditory signals. The object of this study was to determine the feasibility of employing a measure of HR change in human adult subjects to signal the occurrence of a tone.


Descriptors :   *AUDITORY SIGNALS , *HEART RATE , ACOUSTIC DETECTION , ARMY PERSONNEL , EXPOSURE(PHYSIOLOGY) , MOTOR REACTIONS


Subject Categories : Anatomy and Physiology


Distribution Statement : APPROVED FOR PUBLIC RELEASE