Document Detail

Remapping motion across modalities: tactile rotations influence visual motion judgments.
MedLine Citation:
PMID:  20878396     Owner:  NLM     Status:  MEDLINE    
Multisensory interactions between haptics and vision remain poorly understood. Previous studies have shown that shapes, such as letters of the alphabet, when drawn on the skin, are differently perceived dependent upon which body part is stimulated and on how the stimulated body part, such as the hand, is positioned. Another line of research within this area has investigated multisensory interactions. Tactile perceptions, for example, have the potential to disambiguate visually perceived information. While the former studies focused on explicit reports about tactile perception, the latter studies relied on fully aligned multisensory stimulus dimensions. In this study, we investigated to what extent rotating tactile stimulations on the hand affect directional visual motion judgments implicitly and without any spatial stimulus alignment. We show that directional tactile cues and ambiguous visual motion cues are integrated, thus biasing the judgment of visually perceived motion. We further show that the direction of the tactile influence depends on the position and orientation of the stimulated part of the hand relative to a head-centered frame of reference. Finally, we also show that the time course of the cue integration is very versatile. Overall, the results imply immediate directional cue integration within a head-centered frame of reference.
Martin V Butz; Roland Thomaschke; Matthias J Linhardt; Oliver Herbort
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-09-29
Journal Detail:
Title:  Experimental brain research     Volume:  207     ISSN:  1432-1106     ISO Abbreviation:  Exp Brain Res     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-27     Completed Date:  2011-02-04     Revised Date:  2013-12-13    
Medline Journal Info:
Nlm Unique ID:  0043312     Medline TA:  Exp Brain Res     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1-11     Citation Subset:  IM    
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MeSH Terms
Analysis of Variance
Judgment / physiology*
Motion Perception / physiology*
Physical Stimulation
Touch Perception / physiology*
Visual Perception / physiology*

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