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Why does human culture increase exponentially?
Stockholm University, Faculty of Science, Department of Zoology. Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
Stockholm University, Faculty of Humanities, Department of History. Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
Stockholm University, Faculty of Humanities, Centre for the Study of Cultural Evolution.
2008 (English)In: Theoretical Population Biology, ISSN 0040-5809, E-ISSN 1096-0325, Vol. 74, no 1, 46-55 p.Article in journal (Refereed) Published
Abstract [en]

Historical records show that culture can increase exponentially in time, e.g., in number of poems, musical works, scientific discoveries. We model how human capacities for creativity and cultural transmission may make such an increase possible, suggesting that: (1) creativity played a major role at the origin of human culture and for its accumulation throughout history, because cultural transmission cannot, on its own, generate exponentially increasing amounts of culture; (2) exponential increase in amount of culture can only occur if creativity is positively influenced by culture. The evolution of cultural transmission is often considered the main genetic bottleneck for the origin of culture, because natural selection cannot favor cultural transmission without any culture to transmit. Our models suggest that an increase in individual creativity may have been the first step toward human culture, because in a population of creative individuals there may be enough non-genetic information to favor the evolution of cultural transmission.

Place, publisher, year, edition, pages
2008. Vol. 74, no 1, 46-55 p.
Keyword [en]
Creativeness, Culture, Evolution, Humans, Models; Statistical
Identifiers
URN: urn:nbn:se:su:diva-14902DOI: doi:10.1016/j.tpb.2008.04.007ISI: 000257912400006PubMedID: 18571686OAI: oai:DiVA.org:su-14902DiVA: diva2:181422
Available from: 2008-11-07 Created: 2008-11-07 Last updated: 2017-12-13Bibliographically approved

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Enquist, MagnusGhirlanda, SJarrick, Arne
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