The Subconscious Effect During Audio Monitoring
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Pagination or Media Count:
The purpose of the study was to determine if a subconscious detection effect exists in audio monitoring. The vigilance task consisted of the detection of an audio signal masked by thermal noise. Thirty signals over a sixty minute watch were presented to eighteen military officers who were divided into three equally numbered groups. The control group monitored the tape and this was their primary task. The other two groups were engaged in other primary tasks and were asked to monitor the tape as a secondary task. A statistical examination of the results indicated, at a low probability level of p .25, an effect was present causing the groups engaged in monitoring as a secondary task to detect a greater percentage of the signals than the control group. The analysis also indicated that there was a significant decline in performance over time.