A conserved pattern of brain scaling from sharks to primates

Yopak, Kara E., Lisney, Thomas J., Darlington, Richard B., Collin, Shaun P., Montgomery, John C. and Finlay, Barbara L. (2010) A conserved pattern of brain scaling from sharks to primates. Proceedings of the National Academy of Sciences of the United States of America, 107 29: 12946-12951.


Author Yopak, Kara E.
Lisney, Thomas J.
Darlington, Richard B.
Collin, Shaun P.
Montgomery, John C.
Finlay, Barbara L.
Title A conserved pattern of brain scaling from sharks to primates
Journal name Proceedings of the National Academy of Sciences of the United States of America   Check publisher's open access policy
ISSN 0027-8424
1091-6490
Publication date 2010-07-20
Year available 2010
Sub-type Article (original research)
DOI 10.1073/pnas.1002195107
Volume 107
Issue 29
Start page 12946
End page 12951
Total pages 6
Editor Nicholas R Cozzarelli
Place of publication Washington, DC, United States
Publisher National Academy of Science
Collection year 2011
Language eng
Subject C1
970106 Expanding Knowledge in the Biological Sciences
0603 Evolutionary Biology
Abstract Several patterns of brain allometry previously observed in mammals have been found to hold for sharks and related taxa (chondrichthyans) as well. In each clade, the relative size of brain parts, with the notable exception of the olfactory bulbs, is highly predictable from the total brain size. Compared with total brain mass, each part scales with a characteristic slope, which is highest for the telencephalon and cerebellum. In addition, cerebellar foliation reflects both absolute and relative cerebellar size, in a manner analogous to mammalian cortical gyrification. This conserved pattern of brain scaling suggests that the fundamental brain plan that evolved in early vertebrates permits appropriate scaling in response to a range of factors, including phylogeny and ecology, where neural mass may be added and subtracted without compromising basic function. Copyright ©2011 by the National Academy of Sciences
Keyword Chondrichthyan
Cerebellar foliation
Allometry
Mammal
Neuroevolution
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biomedical Sciences Publications
 
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Created: Sun, 15 Aug 2010, 00:01:06 EST