Document Detail

Integration of visual and vestibulo-tactile inputs affecting apparent self-motion around the line of sight.
MedLine Citation:
PMID:  12269304     Owner:  NLM     Status:  MEDLINE    
We investigated the effects of visual and vestibulo-tactile inputs on perceived self-motion. Each of 23 subjects was exposed to an optical pattern rotating around the roll axis (i.e., line of sight) while the chair, in which the subject was placed, was rotated back and forth between +/-70 degrees (i.e., large rolling) or between +/-35 degrees (i.e., small rolling) from the gravitational vertical. Each subject judged perceived velocity of self-motion under each of 16 combinations of pattern velocity and chair velocity. The main results were the following: (1) The mean estimation increased with pattern velocity, and it also increased with chair velocity, (2) to attain a constant perceived velocity of self-motion, pattern velocity was traded for chair velocity, and for the large rolling of the chair, visual inputs were more effective than vestibulo-tactile inputs, whereas for the small rolling, the inverse was true; (3) analyses of multiple regression, when applied to the mean estimations, showed that for both rollings of the chair, the visual component dominated over the vestibulo-tactile component, but for the small rolling of the chair, the difference in effectiveness between the two components was attenuated. We discuss these findings in terms of visual-vestibular interaction.
Atsuki Higashiyama; Kazuo Koga
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perception & psychophysics     Volume:  64     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-09-24     Completed Date:  2002-10-16     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  981-95     Citation Subset:  IM; S    
Ritsumeikan University, Kyoto, Japan.
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MeSH Terms
Fixation, Ocular
Motion Perception / physiology*
Touch / physiology*
Vestibule, Labyrinth / physiology*
Visual Perception / physiology*

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