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Darwin's legacy and the evolution of cerebral asymmetries

Published online by Cambridge University Press:  26 September 2005

Onur Güntürkün
Onur Güntürkün*
Affiliation:
Department of Biopsychology, Institute of Cognitive Neuroscience, Faculty of Psychology, Ruhr-Universität Bochum, 44780Bochum, Germanywww.bio.psy.ruhr-uni-bochum.de
*
[email protected]
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Abstract

Vallortigara & Rogers (V&R) assume that the alignment of escape responses in gregarious species is the central evolutionary organizer of a wide range of cerebral asymmetries. Although it is indeed likely that the benefits of a population asymmetry in social species outweigh its costs, it is hard to see (a) why the population should not oscillate between two subgroups with mirror-image asymmetries, (b) why solitary animals should keep their inherited population asymmetry despite a resulting fitness reduction, and (c) and why so many vertebrate species have comparable cerebral asymmetries.

Type
Open Peer Commentary
Information
Behavioral and Brain Sciences , Volume 28 , Issue 4 , August 2005 , pp. 599 - 600
Copyright
Copyright © Cambridge University Press 2005

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