Deficits to global motion processing in human amblyopia
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Updated: Sep 27, 2026

The Measurement and Treatment of Suppression in Amblyopia
Published on: December 14, 2012
Anita J Simmers1, Tim Ledgeway, Robert F Hess
1The Institute of Ophthalmology, University College London, EC1V 9EL, London, UK. a.simmers@ucl.ac.uk
Abstract:
We investigated global motion processing in a group of adult amblyopes using a method that allows us to factor out any influence of the known contrast sensitivity deficit. We show that there are independent global motion processing deficits in human amblyopia that are unrelated to the contrast sensitivity deficit, and that are more extensive for contrast-defined than for luminance-defined stimuli. We speculate that the site of these deficits must include the extra-striate cortex and in particular the dorsal pathway.
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