COMBINED EFFECTS OF NOISE AND VIBRATION ON MENTAL PERFORMANCE AS A FUNCTION OF TIME OF DAY.
Abstract
To determine the combined effects of noise and vibration on mental performance as a function of time of day, subjects were randomly exposed to each of the following conditions: stress (5 Hz vibration, 110 dB noise) at 6 AM; no stress (no vibration - 85 dB noise) at 6 AM; stress at 3 PM; and no stress at 3 PM. Subjects' performance on a mental arithmetic task was measured during each of these exposures on consecutive days. The average exposure time was approximately 20 minutes. The results are discussed in the context of arousal theory. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1970
- Accession Number
- AD0711636
Entities
People
- C. Stanley Harris
- Henry C. Sommer
Organizations
- Air Force Research Laboratory