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Quantitative Development of Brain and Brain Structures in Birds (Galliformes and Passeriformes) Compared to that in Mammals (Insectivores and Primates) (Part 1 of 2)

Rehkämper G.a · Frahm H.D.a,b · Zilles K.a

Author affiliations

a Anatomisches Institut (Medizinische Fakultät), Universität Köln; b Max Planck Institut für Hirnforschung, Vergleichende Neurobiologie, Frankfurt/Main, BRD

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Brain Behav Evol 1991;37:125–134

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Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: January 23, 2008
Issue release date: 1991

Number of Print Pages: 10
Number of Figures: 0
Number of Tables: 0

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

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

Abstract

The brain weight and brain structure volumes of galliform and passeriform birds were calculated and related to body weight. The total brains and 14 brain regions were investigated in order to calculate factors by which these structures in passeriforms exceed those in galliforms in size. The larger passeriform brains have larger telencephala, especially ventral hyperstriata and neostriata. The enlargement of total brain and telencephalon resembles that in primates, compared to insectivores, within mammals. The enlargement of the ventral hyperstriata + neostriata in passeriforms is fundamentally similar to that of the isocortex in mammals: it reflects an expansion of multimodal integrational capacities, as the ventral hyperstriatum and neostriatum are occupied exclusively or primarily by multimodal integrational areas as is the isocortex.

© 1991 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: January 23, 2008
Issue release date: 1991

Number of Print Pages: 10
Number of Figures: 0
Number of Tables: 0

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

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


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