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  • 2013

  • Baldini, Ryan (2013): Two success-biased social learning strategies. In: Theoretical population biology 86, S. 43-49. DOI: 10.1016/j.tpb.2013.03.005

    DOI: http://www.ncbi.nlm.nih.gov/pubmed/23587700 

    Abstract: I compare the evolutionary dynamics of two success-biased social learning strategies, which, by definition, use the success of others to inform one's social learning decisions. The first, "Compare Means", causes a learner to adopt cultural variants with highest mean payoff in her sample. The second, "Imitate the Best", causes a learner to imitate the single most successful individual in her sample. I summarize conditions under which each strategy performs well or poorly, and investigate their evolution via a gene-culture coevolutionary model. Despite the adaptive appeal of these strategies, both encounter conditions under which they systematically perform worse than simply imitating at random. Compare Means performs worst when the optimal cultural variant is usually at high frequency, while Imitate the Best performs worst when suboptimal variants sometimes produce high payoffs. The extent to which it is optimal to use success-biased social learning depends strongly on the payoff distributions and environmental conditions that human social learners face.

    Keywords: Humans, Learning, Lernen, Lerntheorien, Models, Theoretical, Populationsbiologie, science direct, Social Behavior

  • 1997

  • Papousek, Hanus; Papousek, Mechthild (1997): Preverbal communication in humans and the genesis of culture

    Abstract: Discusses the degree to which biological predispositions determine language and speech acquisition in human infants. Topics include: (1) the adaptive significance of genetically determined communicative processes during the preverbal developmental stage; (2) the application of dynamic models in human interaction; (3) the adaptive relevance of human communication; and (4) the coevolution of predispositions for speech acquisition in infants and speech-related didactics in parents. An analogy is made between the early development of communicative capacities in infants and the genesis of culture in human evolution. zitiert von 13

    Keywords: Biology, Culture, Culture (Anthropological), Language Development, Kommunikation, Nonverbal communication, Populationsbiologie, Predisposition, Speech Development, Sprachwissenschaften, Theory of Evolution
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