evolutionary explanations for aggression and group display

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  • Created by: Atlanta
  • Created on: 02-01-13 10:27
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  • Evolution and human aggression
    • evolutionary explanations
      • infidelity
        • A01 - May lead to sexual coercion or rape, violence toward pregnant partners and uxoricide.
        • A02 - Burch & Gallup, double frequent violence to partners pregnant with another man's baby.
        • A02/AID - Studies mainly focus on men's mate retention strategies but females also use them.
        • A02 - Canerelli found a link between infidelity and partner violence in males but not females - cuckoldry.
      • Jealousy
        • - men experience sexual jealousy due to paternal uncertainty - sexual jealousy deters mate from infidelity and cuckoldry -use of mate retention strategies e.g. direct guarding and negative inducements.
        • Practical applications - tactics of mate retention can be an early indicator of partner violence.
        • A02 - Shackelford et al - shows support for mate retention strategies and violence.
          • AID - however he used self report techniques and so has social desirabillity bias.
    • group displays
      • sports
        • A01 - Xenophobia - suspicion and fear of strangers favoured by natural selection
        • A02 - Neave & Wolfson - having a home crowd present  increased players testosterone.
        • A02 - Moore  & Brylinsky - challenge idea of playing in front of home crowd posing an advantage.
      • warfare
        • A01 - aggressive males are more attractive to females and have more sexual partners, - status and acceptance by other males, - show commitment, - minimise defeat
        • A02  - Palmer and Tilley - male youth street gang members have more sexual partners.
        • A02 - The idea that war emerged as a responce to a change in lifestyle from nomadic to settled and so is not genetic.
        • A02 - Watson suggests that because humans torture their victims in war, aggression may be more a consequence of deindividuationthan evolutionary adaptations.


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