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Open Access item Revisiting the cognitive buffer hypothesis for the evolution of large brains

Authors:Sol, Daniel
Keywords:Life history, Neurobiology, Brain evolution, Cognitive ecology
Issue Date:2009
Publisher:Royal Society (Great Britain)
Citation:Biology Letters 5(1) : 130-133 (2009)
Abstract:Why have some animals evolved large brains despite substantial energetic and developmental costs? A classic answer is that a large brain facilitates the construction of behavioural responses to unusual, novel or complex socioecological challenges. This buffer effect should increase survival rates and favour a longer reproductive life, thereby compensating for the costs of delayed reproduction. Although still limited, evidence in birds and mammals is accumulating that a large brain facilitates the construction of novel and altered behavioural patterns and that this ability helps dealing with new ecological challenges more successfully, supporting the cognitive-buffer interpretation of the evolution of large brains.
Description:4 páginas, 2 figuras.
Publisher version (URL):http://dx.doi.org/10.1098/rsbl.2008.0621
URI:http://hdl.handle.net/10261/57808
ISSN:1744-9561
E-ISSNmetadata.dc.identifier.doi = DOI:1744-957X
Appears in Collections:(CEAB) Artículos

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