RESIDUAL EFFECTS OF STORM CONDITIONS AT SEA UPON THE POSTURAL EQUILIBRIUM FUNCTIONING OF VESTIBULAR NORMAL AND VESTIBULAR DEFECTIVE HUMAN SUBJECTS

Abstract

The residual effects of storm conditions at sea upon postural equilibrium functioning have not been studied objectively. As part of a larger study, the opportunity was taken to investigate by means of a new quantitative ataxia test battery differences between vestibular normals (N=20) and labyrinthine defective (L-D) human subjects (N=9). Following a highly stressful sea experience, during which bizarre stimulation of the vestibular apparatus was amply provided, the L-D group maintained or improved their baseline postural equilibrium test performance scores. The ten initially poorest scoring normals as a sub-group were found free of postural decrement in contrast with significant performance decrements observed in the initially highest scoring sub-group of normals. Probable influences over differential results within the normals and between groups as well as differential test findings are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jul 02, 1965
Accession Number
AD0620256

Entities

People

  • Alfred R. Fregly
  • Ashton Graybiel

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Aeronautics
  • Assembly
  • Assembly Lines
  • Aviation Medicine
  • Base Lines
  • Biological Sciences
  • Climate Change
  • Contrast
  • Enlisted Personnel
  • Motion Sickness
  • Naval Aviation
  • Nova Scotia
  • Performance Tests
  • Recovery
  • Residuals
  • Rotation
  • Statistical Tests

Fields of Study

  • Psychology

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Regression Analysis.