Aerospace Medicine Technical Reports

FAA Office of Aerospace Medicine
Civil Aerospace Medical Institute


Report No: DOT/FAA/AM-65/1

Title and Subtitle: Auditory fatigue: influence of mental factors.

Report Date: January 1965

Authors: Capps MJ, Collins WE.

Abstract: Conflicting reports regarding the influence of mental tasks on auditory fatigue have recently appeared in the literature. In the present study, 10 male subjects were exposed to 4000 cps fatigue toe at 40 dB SL for 3 min under conditions of mental arithmetic and reverie. Temporary threshold shifts, as indicated by comparing pre- and post-fatigue thresholds, were consistently greater when subjects worked mental arithmetic during exposure to the fatigue tone than when engaged in reverie.

Key Words: mental tasks, reverie, threshold shift, sensory response.

No. of Pages: 8

Last updated: Friday, June 1, 2012