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Word recognition in the split brain and PET studies of spatial stimulus-response compatibility support contextual integration

Published online by Cambridge University Press:  01 December 1997

Marco Iacoboni
Marco Iacoboni
Affiliation:
Brain Mapping Division, Department of Neurology and Psychology, University of California, Los Angeles, Los Angeles CA 90095 iacoboni@loni.ucla.edubrainmapping.loni.ucla.edu
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Abstract

The neural substrates of context effects in word perception are still largely unclear. Interhemispheric priming phenomena in word recognition, typically observed in normal subjects, are absent in commissurotomized patients. This suggests that callosal fibers may provide contextual integration. In addition, certain characteristics of human frontal cortical fields subserving sensorimotor learning, as investigated by positron emission tomography, provide evidence for contextual integration not confined to the visual system. This supports the notion of common aspects of cortical computations in different cerebral areas.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 20 , Issue 4 , December 1997 , pp. 690 - 691
Copyright
© 1997 Cambridge University Press

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