Document Detail


Coordinating one hand with two eyes: optimizing for field of view in a pointing task.
MedLine Citation:
PMID:  12535998     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We previously found that subjects switched 'ocular dominance' as a function of horizontal gaze direction in a reaching task [Vision Res. 41 (14) (2001) 1743]. Here we extend these findings to show that when subjects pointed to targets across the horizontal binocular field, they aligned the fingertip with a vertical plane located between the eyes and the target. This eye-target plane gradually shifted from aligning with the left eye (leftward targets) to between the two eyes (intermediate targets) to the right eye (rightward targets). We suggest that this occurs to optimize eye-hand alignment towards the eye with the best overall field of view.
Authors:
Aarlenne Z Khan; J Douglas Crawford
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  43     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2003 Feb 
Date Detail:
Created Date:  2003-01-21     Completed Date:  2003-06-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  409-17     Citation Subset:  IM    
Affiliation:
York Centre for Vision Research, York University, Ont., M3J 1P3, Toronto, Canada.
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MeSH Terms
Descriptor/Qualifier:
Adult
Convergence, Ocular / physiology*
Darkness
Dominance, Cerebral / physiology
Feedback, Psychological / physiology
Hand / physiology*
Humans
Middle Aged
Psychomotor Performance
Vision Disparity / physiology
Vision, Binocular / physiology*
Vision, Monocular / physiology
Visual Fields / physiology

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


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