HUMAN EQUILIBRIUM DURING ACOUSTIC STIMULATION BY DISCRETE FREQUENCIES

Abstract

The ability of subjects to balance on narrow rails was measured during exposure to pure tones of 100, 260, 590, 1500, and 2500 Hz and a control condition. One group of subjects was presented the test stimulus at intensity levels of 95 dB (re 0.0002 dyne/sq cm) in the left ear and 75 dB in the right ear (asymmetrical exposure). The other group was presented the tones at a level of 95 dB in both ears (symmetrical exposure). A decrement in rail performance occurred at 1500 Hz for the asymmetrical exposure group and at 590 Hz for the symmetrical exposure group. The decrement determined with symmetrical exposure was less than the decrement found with asymmetrical exposure. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1968
Accession Number
AD0675172

Entities

People

  • C. S. Harris
  • Henery C. Sommer

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Acoustic Stimulation
  • Aerospace Environments
  • Air Force
  • Air Force Facilities
  • Analysis Of Variance
  • Biomedical Research
  • Data Science
  • Ear
  • Experimental Design
  • Frequency
  • Intensity
  • Nystagmus
  • Ratings
  • Security
  • Sensitivity
  • Sound Pressure
  • Task Performance And Analysis

Readers

  • Acoustics.
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience