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Non-kin interactions: Reciprocal altruism in animals

Non-kin interactions: Reciprocal altruism in animals. Allison Block, Chelsea SoLOMita , & Lily Tucker. Stevens, J.R. & Hauser, M.D. (2004). Why be nice? Psychological constraints on the evolution of cooperation. Trends in Cognitive Sciences, 8(2), 60-65. Key points.

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Non-kin interactions: Reciprocal altruism in animals

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  1. Non-kin interactions: Reciprocal altruism in animals Allison Block, Chelsea SoLOMita, & Lily Tucker Stevens, J.R. & Hauser, M.D. (2004). Why be nice? Psychological constraints on the evolution of cooperation. Trends in Cognitive Sciences, 8(2), 60-65.

  2. Key points • Reciprocal altruism is present in non-human animals, but more rare than in humans • This is likely due to psychological/cognitive restraints including: • Temporal discounting • Numerical discrimination • Memory Stevens, J.R. & Hauser, M.D. (2004). Why be nice? Psychological constraints on the evolution of cooperation. Trends in Cognitive Sciences, 8(2), 60-65.

  3. Critical review • Particularly interesting points: • Rats and pigeons can count?! • Animals are like young human children in terms of delayed gratification Stevens, J.R. & Hauser, M.D. (2004). Why be nice? Psychological constraints on the evolution of cooperation. Trends in Cognitive Sciences, 8(2), 60-65.

  4. Critical review • Confusingpoints: • Memory section was unconvincing • Different species have different intelligence Stevens, J.R. & Hauser, M.D. (2004). Why be nice? Psychological constraints on the evolution of cooperation. Trends in Cognitive Sciences, 8(2), 60-65.

  5. Video Dawn of Social Networks: Hunter-gatherers Provide Clues About the Evolution of Cooperation

  6. Discussion • Although this study is about animals, it helps us understand what psychological and cognitive mechanisms are crucial for humans to engage in reciprocal relationships. • Can anyone think of an example of a time when they helped/cooperated with someone who wasn't in their family? What was your motivation? Was it really altruistic? Stevens, J.R. & Hauser, M.D. (2004). Why be nice? Psychological constraints on the evolution of cooperation. Trends in Cognitive Sciences, 8(2), 60-65.

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