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Contextual Masking of Oriented Lines: Interactions Between Surface Segmentation Cues
 

Summary: Contextual Masking of Oriented Lines: Interactions Between Surface
Segmentation Cues
Maarten J. van der Smagt,1,2
Christian Wehrhahn,2,3
and Thomas D. Albright1,2
1
Howard Hughes Medical Institute and 2
Systems Neurobiology Laboratories, Salk Institute for Biological Studies, La Jolla, California;
and 3
Max-Planck-Institut fu¨r Biologische Kybernetik, Tu¨bingen, Germany
Submitted 9 April 2004; accepted in final form 21 February 2005
van der Smagt, Maarten J., Christian Wehrhahn, and Thomas D.
Albright. Contextual masking of oriented lines: interactions between
surface segmentation cues. J Neurophysiol 94: 576­589, 2005. First
published March 2, 2005; doi:10.1152/jn.00366.2004. The ability of
human observers to detect and discriminate a single feature of a visual
image deteriorates markedly when the targeted feature is surrounded
by others of a similar kind. This perceptual masking is mirrored by the
suppressive effects of surround stimulation on the responses of neu-
rons in primary visual cortex (area V1). Both perceptual and neuronal

  

Source: Albright, Tom - Vision Center Laboratory, Salk Institute for Biological Studies

 

Collections: Biology and Medicine