HUMAN GAZE INSTABILITY DURING BRIEF EXPOSURE TO REDUCED GRAVITY

Authors
  1. Cheung, B.S.K.
  2. Money, K.E.
  3. Howard, I.P.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);York Univ, North York ONT (CAN) Human Performance in Space Lab
Abstract
The stability of gaze in three dimensions (horizontal, vertical and torsional) was investigated with the electromagnetic scleral search-coil technique during the microgravity phase of parabolic flignts under two visual fixation conditions: fixation on a real target and on an imagined target. Subjects were secured upright with the head immobilized by a dental bite. There were torsional eye movements in response to the imposition of reduced gravitoinertial forces under both visual fixation conditions. The pattern of these movements was consistent with our previous findings on six other subjects. No significant horizontal eye movements were observed in either fixation condition.
Report Number
DCIEM-92-42 — Reprint
Date of publication
14 Sep 1992
Number of Pages
11
Reprinted from
Journal of Vestibular Research, vol 4, 1994, p 17-27
DSTKIM No
94-00690
CANDIS No
137641
Format(s):
Hardcopy;Originator's fiche received by DSIS

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