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COGSCI 111 Feb15Lecture

COGSCI 111 Feb15Lecture - Some Candidate Tools(Modules...

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Some Candidate Tools (Modules) Animate monitoring Specific emotions Language Cheater detector Kin recognizer and nepotist
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Why might we expect adaptive specializations related to recognizing and aiding kin? Altruism : helping another at a cost to yourself How can altruism evolve?
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“I will jump into the river to save two brothers or eight cousins” - J. B. S. Haldane
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Inclusive fitness (kin selection) (Hamilton) Helping your identical twin is the same (from a gene’s eye view) as helping yourself Altruism toward kin could increase your fitness There may have been selection to be altruistic toward kin (to show nepotism)
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How do we know who our kin are? Familiarity established during rearing (humans and non-humans) Self-referent phenotype matching (hamsters, humans?) Paternity recognition “Mama’s baby, Papa’s maybe” The baby morphing study
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Some Candidate Tools (Modules) Animate monitor Specific emotions Language Cheater detector Kin recognizer and nepotist Mate finders/assessors
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Candidate Mate Finders/Assessors Incest avoider
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Incest avoider Avoiding first degree relatives Deleterious recessives
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