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Nature. 2002 Jan 10;415(6868):133-4.

Analysis of mammalian brain architecture.

Author information

1
Department of Cognitive Neurology, University of Tübingen, Germany. fahad.sultan@uni-tuebingen.de

Abstract

The mammalian brain is composed of several distinct parts which show different growth in evolution. Clark, Mitra and Wang found that the two main cortices of the brain - the cerebral (neo-) cortex and the cerebellum - show very different growth, and that whereas the ratio of neocortex volume to total brain volume increases with evolution, the cerebellum occupies a constant proportion in different species. Here I compare the surface areas of the two cortices in different species and find that these show a simple proportionality. Contrary to the conclusion drawn by Clark et al., this linear dependence of size implies that the two major cortices increase their computational capacity in parallel, suggesting a functional dependence of the one upon the other.

PMID:
11805821
DOI:
10.1038/415133b
[Indexed for MEDLINE]

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