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Two years ago a symposium on cortical localization was held by the Association for Research in Nervous and Mental Disease. The collected papers of that symposium have recently been published under the title "Localization of Function in the Cerebral Cortex." I know that this term is commonly used, though it is certainly open to objection and, in my opinion, is fundamentally incorrect.
An enormous number of nervous activities involve not only the cortex but also other levels of the nervous system. This is true of the human being, so far as is known, for all perceptual and voluntary activity. This means, irrespective of one's point of view in regard to the problem of functional localization within the cortex, that it is incorrect to state that vision, hearing or motility is "localized" in the cerebral cortex. If this term is used, the only appropriate statement would be that the nervous function