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Vol. 61, No. 1, 2003
Issue release date: February 2003
Section title: Original Paper
Brain Behav Evol 2003;61:1–5
(DOI:10.1159/000068880)

The Scaling of White Matter to Gray Matter in Cerebellum and Neocortex

Bush E.C. · Allman J.M.
Biology Division, California Institute of Technology, MC 216-76, Pasadena, Calif., USA

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 10/3/2002
Accepted: 11/26/2002
Published online: 3/13/2003
Issue release date: February 2003

Number of Print Pages: 5
Number of Figures: 2
Number of Tables: 2

ISSN: 0006-8977 (Print)
eISSN: 1421-9743 (Online)

For additional information: http://www.karger.com/BBE

Abstract

It is known that the white matter of neocortex increases disproportionately with brain size. However, relatively few measurements have been made of white matter/gray matter scaling in the cerebellum. We present data on the volumes of white and gray matter in both structures, taken from 45 species of mammals. We find a scaling exponent of 1.13 for cerebellum and 1.28 for neocortex. The 95% confidence intervals for our estimates of these two exponents do not overlap. This difference likely reflects differences in the connectivity and/or micro-structure of white matter in the two regions.

© 2003 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 10/3/2002
Accepted: 11/26/2002
Published online: 3/13/2003
Issue release date: February 2003

Number of Print Pages: 5
Number of Figures: 2
Number of Tables: 2

ISSN: 0006-8977 (Print)
eISSN: 1421-9743 (Online)

For additional information: http://www.karger.com/BBE


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