Changes in compensatory eye movements associated with simulated stimulus conditions of spaceflight

Details

Serval ID
serval:BIB_71474CA8EF50
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Changes in compensatory eye movements associated with simulated stimulus conditions of spaceflight
Journal
Aviation Space and Environmental Medicine
Author(s)
Harm  D. L., Zografos  L. M., Skinner  N. C., Parker  D. E.
ISSN
0095-6562 (Print)
Publication state
Published
Issued date
09/1993
Volume
64
Number
9 Pt 1
Pages
820-6
Notes
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S. --- Old month value: Sep
Abstract
Compensatory vertical eye movement gain (CVEMG) was recorded during pitch oscillation in darkness before, during and immediately after exposures to the stimulus rearrangement produced by the Preflight Adaptation Trainer (PAT) Tilt-Translation Device (TTD). The TTD is designed to elicit adaptive responses that are similar to those observed in microgravity-adapted astronauts. The data from Experiment 1 yielded a statistically significant CVEMG decrease following 15 min of exposure to a stimulus rearrangement condition where the phase angle between subject pitch tilt and visual scene translation was 270 degrees; statistically significant gain decreases were not observed following exposures either to a condition where the phase angle between subject pitch and scene translation was 90 degrees or to a no-stimulus-rearrangement condition. Experiment 2 replicated the 270 degrees-phase condition from Experiment 1 and extended the exposure duration from 30 to 45 min. Statistically significant additional changes in CVEMG associated with the increased exposure duration were not observed. The adaptation time constant estimated from the combined data from Experiments 1 and 2 was 29 min.
Keywords
*Adaptation, Physiological Adult Eye Movements/*physiology Humans *Space Flight Time Factors
Pubmed
Web of science
Create date
28/01/2008 13:10
Last modification date
20/08/2019 14:29
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