COGSCI 111 Jan30Lecture

COGSCI 111 Jan30Lecture - Relative forebrain weight fore...

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Relative forebrain weight
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fore-
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Relatively large brains have evolved multiple times in different animal lineages, not just once in humans Why? What are the selective pressures for that?
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Behavioral characteristics associated with relatively large brains An active feeding mode or a food type that doesn’t require a large gut A large range of movement
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Whale shark
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Great white shark
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Behavioral characteristics associated with relatively large brains An active feeding mode or a food type that doesn’t require a large gut A large range of movement Social complexity (the social brain hypothesis) A new hypothesis: pairbonds and other bonded relationships Multifactorial determination almost certainly right!
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Behavioral Characteristics Associated with Relatively Large Brains and Cortex in Primates An active feeding mode or a food type that doesn’t require a large gut Social complexity (the social brain hypothesis) Strong positive association between relative cortex size and group size (why groups?) Complexity of vocal communication
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This note was uploaded on 02/25/2008 for the course COGST 1110 taught by Professor Adkinsregan,e&ho during the Spring '08 term at Cornell.

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COGSCI 111 Jan30Lecture - Relative forebrain weight fore...

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