Analysis of mammalian brain architecture

Fahad Sultan ()
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Fahad Sultan: University of Tübingen

Nature, 2002, vol. 415, issue 6868, 133-134

Abstract: Abstract The mammalian brain is composed of several distinct parts which show different growth in evolution. Clark, Mitra and Wang1 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.1, 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.

Date: 2002
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DOI: 10.1038/415133b

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