Document Detail


Localization and motion perception during smooth pursuit eye movements.
MedLine Citation:
PMID:  16331504     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We investigated the relationship between compensation for the effects of smooth pursuit eye movements in localization and motion perception. Participants had to indicate the perceived motion direction, the starting point and the end point of a vertically moving stimulus dot presented during horizontal smooth pursuit. The presentation duration of the stimulus was varied. From the indicated starting and end points, the motion direction was predicted and compared with the actual indicated directions. Both the directions predicted from localization and the indicated directions deviated from the physical directions, but the errors in the predicted directions were larger than those in the indicated directions. The results of a control experiment, in which the same tasks were performed during fixation, suggest that this difference reflects different transformations from a retinocentric to a head-centric frame of reference. This difference appears to be mainly due to an asymmetry in the effect of retinal image motion direction on localization during smooth pursuit.
Authors:
Jan L Souman; Ignace Th C Hooge; Alexander H Wertheim
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Publication Detail:
Type:  Journal Article     Date:  2005-12-06
Journal Detail:
Title:  Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale     Volume:  171     ISSN:  0014-4819     ISO Abbreviation:  Exp Brain Res     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-05-18     Completed Date:  2007-10-02     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0043312     Medline TA:  Exp Brain Res     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  448-58     Citation Subset:  IM    
Affiliation:
Helmholtz Institute, Department of Psychonomics, Utrecht University, Utrecht, The Netherlands. jan.souman@tuebingen.mpg.de
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Afterimage
Analysis of Variance
Female
Humans
Male
Motion Perception / physiology*
Orientation / physiology*
Pattern Recognition, Visual
Photic Stimulation / methods
Psychophysics
Pursuit, Smooth / physiology*
Reference Values
Space Perception / physiology*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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