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Case Reports
, 123 ( Pt 5), 920-6

Insights Into the Functional Specificity of the Human Corpus Callosum

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Case Reports

Insights Into the Functional Specificity of the Human Corpus Callosum

M G Funnell et al. Brain.

Abstract

Patient VP underwent complete callosotomy for the control of intractable epilepsy at the age of 27 years. Subsequent MRI, however, revealed spared callosal fibres in the rostral and splenial ends of the corpus callosum. We report a series of experiments designed to determine whether these fibres support functional transfer of information between the two cerebral hemispheres. Although we found no evidence for transfer of colour, shape or size information, there is good evidence for transfer of word information. This suggests that the spared splenial fibres in VP's corpus callosum are material-specific. The results of these experiments illustrate the remarkable degree of functional specificity within the corpus callosum

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