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Self-motion perception: assessment by computer-generated animationsThe goal of this research is more precise description of adaptation to sensory rearrangements, including microgravity, by development of improved procedures for assessing spatial orientation perception. Thirty-six subjects reported perceived self-motion following exposure to complex inertial-visual motion. Twelve subjects were assigned to each of 3 perceptual reporting procedures: (a) animation movie selection, (b) written report selection and (c) verbal report generation. The question addressed was: do reports produced by these procedures differ with respect to complexity and reliability? Following repeated (within-day and across-day) exposures to 4 different "motion profiles," subjects either (a) selected movies presented on a laptop computer, or (b) selected written descriptions from a booklet, or (c) generated self-motion verbal descriptions that corresponded most closely with their motion experience. One "complexity" and 2 reliability "scores" were calculated. Contrary to expectations, reliability and complexity scores were essentially equivalent for the animation movie selection and written report selection procedures. Verbal report generation subjects exhibited less complexity than did subjects in the other conditions and their reports were often ambiguous. The results suggest that, when selecting from carefully written descriptions and following appropriate training, people may be better able to describe their self-motion experience with words than is usually believed.
Document ID
20040089196
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Parker, D. E.
(University of Washington Seattle 98195, United States)
Harm, D. L.
Sandoz, G. R.
Skinner, N. C.
Date Acquired
August 21, 2013
Publication Date
January 1, 1998
Publication Information
Publication: Acta astronautica
Volume: 42
Issue: 8-Jan
ISSN: 0094-5765
Subject Category
Aerospace Medicine
Funding Number(s)
CONTRACT_GRANT: NAGW-4393
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Neuroscience

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