Accession Number : AD0710595

Title :   COMBINED EFFECTS OF NOISE AND VIBRATION ON PSYCHOMOTOR PERFORMANCE.

Descriptive Note : Final rept., May-Sep 69,

Corporate Author : AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Harris,C. Stanley ; Shoenberger,Richard W.

Report Date : MAY 1970

Pagination or Media Count : 29

Abstract : Tracking performance and reaction time to the appearance of a light (red lights) and disappearance of a light (green lights) of highly trained subjects were measured during four experimental conditions. There were two conditions of 85 dB and 110 dB broadband noise exposure, and two conditions in which these noise exposures were combined with 0.25G vertical vibration at 5 Hz. Duration of exposure for each condition was 19 minutes. Vibration was found to have an adverse effect on both the horizontal and vertical dimensions of the tracking task and on reaction time to both sets of lights. Noise had a significant effect, both with and without vibration, but only on the vertical part of the tracking task. On vertical tracking, the detrimental effect of noise was additive to that of vibration when both noise and vibration were presented simultaneously (110dB noise and 0.25G vertical vibration at 5 Hz). (Author)

Descriptors :   (*PERFORMANCE(HUMAN), NOISE), VIBRATION, PSYCHOMOTOR TESTS, BROADBAND, ACOUSTICS, SPACE CREWS, BEHAVIOR, VISUAL ACUITY, REACTION(PSYCHOLOGY)

Subject Categories : Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE