J. Cogn. Neurosci.
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(Journal of Cognitive Neuroscience. 2003;15:862-872.)
© 2003 The MIT Press

Shadows in the Brain

Umberto Castiello

Royal Holloway–University of London

Dean Lusher

The University of Melbourne

Carol Burton and Peter Disler

Melbourne Extended Care and Rehabilitation Services (MECRS)

The aims of the present study were to investigate whether the processing of an object shadow occurs implicitly, that is without conscious awareness, and where physically within the human brain shadows are processed. Here we present neurological evidence, obtained from studies of brain-injured patients with visual neglect, that shadows are implicitly processed and that this processing may take place within the temporal lobe. Neglect patients with lesions that do not involve the right temporal lobe were still able to process shadows to optimize object shape perception. In contrast, shadow processing was not found to be as efficient in neglect patients with lesions that involve the right temporal lobe.






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NEURAL COMPUTATION J COGNITIVE NEUROSCIENCE MIT PRESS JOURNALS
Copyright © 2003 by The MIT Press.