Accession Number : AD0766326

Title :   The Effect of Simulated Sonic Boom Rise Time and Overpressure on Electroencephalographic Waveforms and Disturbance Judgments.

Descriptive Note : Final rept.,

Corporate Author : MAN-ACOUSTICS AND NOISE INC SEATTLE WASH

Personal Author(s) : Mabry,J. E. ; Parry,H. J.

Report Date : JUL 1973

Pagination or Media Count : 39

Abstract : The three main objectives of this study were as follows: Determine the feasibility of investigating effect of simulated sonic booms on some sleep patterns of persons undergoing routine electroencephalographic (EEG) examinations; determine the extent that EEG waveforms are altered by the simulated sonic booms; and obtain 'disturbance', judgments as a function of the simulated boom noises. Results were obtained from fifty (50) subjects of both sexes with ages ranging from 15 to 72 years of age. Data was relevant to resting, dozing, or light sleep. The EEG waveforms for resting or dozing persons was not changed by the simulated boom noises. In general, the subjects were not, 'disturbed', by the simulated booms. Ninety-two (92) percent of the subjects reported no, 'disturbance', to any of the simulated booms presented. Two rise times of 15 and 7 ms were employed with overpressures ranging from 0.94 to 2.85 PSF. (Author)

Descriptors :   (*ELECTROENCEPHALOGRAPHY, *SONIC BOOM), (*NOISE, *SLEEP), SIMULATION, STRESS(PHYSIOLOGY), AIRCRAFT NOISE, JET AIRCRAFT

Subject Categories : Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE