Accession Number:

AD0687408

Title:

ADAPTATION TO VESTIBULAR DISORIENTATION. VIII. 'CORIOLIS'. VESTIBULAR STIMULATION AND THE INFLUENCE OF DIFFERENT VISUAL SURROUNDS,

Descriptive Note:

Corporate Author:

CIVIL AEROMEDICAL INST OKLAHOMA CITY OKLA

Personal Author(s):

Report Date:

1967-08-01

Pagination or Media Count:

15.0

Abstract:

Disorientation caused by Coriolis vestibular reactions has been cited frequently as a significant factor in flying safety. In addition, personnel who maintain rotating radar towers may also be adversely affected by Coriolis problems. In the study, the direction, extent and intensity of the illusions produced by Coriolis vestibular stimulation were investigated with subjects a in total darkness, b viewing simulated wing-tip lights and a rotating beacon in an otherwise totally dark room, and c viewing the simulated aircraft lights through a window in a luminous cabin in an otherwise totally dark room. During 72 degsec rotation about the yaw-axis, lateral head movements of 30 deg produced mean verbal estimates of apparent diving and climbing sensations between 33.8-87.2 deg. Intensity ratings of the sensation of apparent displacement were greatest for the simulated aircraft lights condition, and the relative intensity of sensation between one type of head movement as compared with another appeared to be affected by the visual surrounds. Author

Subject Categories:

  • Anatomy and Physiology
  • Stress Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE