Comparative Psychology exam 4- sexual imprinting

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7 Terms

1
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cross fostering

raising an infant with a different species or parental type to test environmental vs genetic influences

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Four factors needed for imprinting

  1. occurs early

  2. occurs rapidly

  3. irreversible

  4. leads to long-term preference

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Filial imprinting

on caregivers, guides following

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Sexual imprinting

shapes adult mate preferences

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Chemical imprinting

olfactory imprinting (salmon mice)

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Zebra finch x Bengalese finch experiments

  • cross-fostered males sing songs of foster parents

  • females prefer songs similar to their fathers

  • siblings matter: male chicks learn from brothers and peers too

    • conclusion: sexual imprinting arises from family and group experience, not just parents

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Sensitive period

a window when experience has the strongest developmental influence (less rigid than a critical period)