class12 - What happens if there is no contact at all Social...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: What happens if there is no contact at all Social emotions Monkeys in solitary confinement Humans in harsh orphanages Altruism towards non-kin Animals are nice to non-kin Grooming Warning cries Shared child care Food sharing -- e.g., vampire bats 9 How could this evolve? Individuals benefit more by working together than working alone -- the benefits outweigh the costs -- reciprocal altruism But Cheater detection Reciprocal altruism can only evolve if animals punish cheaters This requires a lot of mental apparatus: -- recognizing cheaters -- remembering those individuals -- motivation to punish The problem of cheaters Cooperation is unstable Advantage to genes that lead animals to reap the benefits without paying the costs Gene A: Accept blood from others; share blood Gene B: Accept blood from others; dont share blood Gene B will out-reproduce Gene A So how can altruism evolve? 1 case-study of cooperation: What all PDs share The Prisoners Dilemma The best case is to defect while the other person cooperates The worse case is to cooperate while the other person defects Best for both is if each cooperate Worse for both is if each defect MY SPOUSE The puzzle NO YES Regardless of what your opponent does, it pays to defect ME But if both people defect, both are NO worse off!...
View Full Document

Page1 / 11

class12 - What happens if there is no contact at all Social...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online