Document Detail

A deficit in strabismic amblyopia for global shape detection.
MedLine Citation:
PMID:  10341944     Owner:  NLM     Status:  MEDLINE    
Using a task which relied upon the detection of sinusoidal deformations from circularity, we show that strabismic amblyopes exhibit deficits which are not critically dependent on either the scale of deformation or the spatial frequency characteristics of the stimulus (circular D4) itself. We show that this loss is not due to the restricted passband of the amblyopic eye. Furthermore, in a pedestal distortion experiment, we show that the suprathreshold form of this loss is consistent with an elevated level of 'intrinsic noise' rather than a loss in 'sampling efficiency'.
R F Hess; Y Z Wang; R Demanins; F Wilkinson; H R Wilson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  39     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1999 Mar 
Date Detail:
Created Date:  1999-06-07     Completed Date:  1999-06-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  901-14     Citation Subset:  IM    
McGill Vision Research, McGill University, Montreal, Canada.
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MeSH Terms
Amblyopia / physiopathology*
Discrimination (Psychology) / physiology
Form Perception / physiology*
Pattern Recognition, Visual / physiology
Sensory Thresholds / physiology
Strabismus / physiopathology*

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