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On the Organization and Functions of the Cerebral Cortex Percival Bailey 1 pp.113-114,115-132
Published Date 1950/5/1
DOI https://doi.org/10.11477/mf.1406200105
  • Abstract
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The cerebral cortex develops by evagina-tion and elaboration of the lateral walls of the endbrain. The earliest evaginations become the olfactory bulbs. At the base of the olfactory bulbs lies a complex second olfactory area which is invaded and expan-ed by various nonolfactory systems and this correlation tissue is evaginated and elaborated to form the cerebral hemisphe-res. The gray matter covering the latter is called the cortex or pallium. The older olfactory portion-archipallium, allocortex-is later pushed to the periphery and comple-tely overshadowed by the vast expansion of the neopallium, called the isocortex be-cause at some time in its ontogenetic deve-lopment it has a typical six-layered structu-re. This thin sheet of correlation tissue seems well adapted to the labile type of behavior which we call intelligent and ca-pable of indefinite expansion (Herrick,-'21).

The tremendous increase in size of the cerebral cortex in relation to the rest of the organismis evidence of its fundament-al importance to the functioning of the human organism and biologists early beganto be curious about its structure since the structure of any organ imposes on the energy it utilizes the order of its func-tioning. Because the nervous tissue is an organ of communication and interrelation it was obvious that there were two aspects of the cortex which had to be investigated —its intrinsic structure and its external con-nection.


Copyright © 1950, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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