Accession Number : AD0712791


Title :   RELEVANT AND IRRELEVANT AUDITORY BACKGROUNDS DURING VISUAL MONITORING.


Descriptive Note : Master's thesis,


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF


Personal Author(s) : Falkenbach,Robert William


Report Date : SEP 1970


Pagination or Media Count : 41


Abstract : The purpose of the study was to determine the effect of three different auditory environments on performance during a simple visual monitoring task. The vigilance task was the detection of an abnormally large deflection of a voltmeter needle making twenty uniform deflections per minute. The length of the watch was sixty minutes, during which thirty-two signals were presented. Twenty-four military officers were used as subjects, eight in each group. A statistical examination of the results was made to discover any statistically significant difference between the percentage of signals detected by each of the three groups. A significant decline in performance over time occurred. (Author)


Descriptors :   (*ATTENTION, PERFORMANCE(HUMAN)), (*PERFORMANCE(HUMAN), ENVIRONMENT), NOISE, VISUAL PERCEPTION, VOLTMETERS, AUDITORY SIGNALS, BACKGROUND, INTERFERENCE, IMPACT, CORRELATION TECHNIQUES, OFFICER PERSONNEL, NAVAL RESEARCH, THESES


Subject Categories : PSYCHOLOGY


Distribution Statement : APPROVED FOR PUBLIC RELEASE