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Modelling cultural systems and selective filters
Mälardalen University, School of Education, Culture and Communication, Educational Sciences and Mathematics.
Stockholms universitet.
Brunel University London.
Stockholms universitet.
(English)Manuscript (preprint) (Other academic)
Abstract [en]

A specific goal of the field of cultural evolution is to understand how processes of transmission and selection at the individual level lead to population-wide patterns of cultural diversity and change. Models of cultural evolution have typically assumed that traits are independent of one another and essentially exchangeable. But culture has a structure: traits bear relationships to one another that affect the transmission and selection process itself. Here we introduce a modelling framework to explore the effect of cultural structure on the process of learning. Through simulations, we find that introducing this simple structure changes the cultural dynamics. Based on a basic filtering mechanism for parsing these relationships, more elaborate cultural filters emerge. In a mostly incompatible cultural domain of traits, these filters organise culture into mostly (but not fully) consistent and stable systems. Incompatible domains produce small homogeneous cultures, while more compatibility increases size, diversity, and group divergence. When individuals copy based on a trait's features (here, its compatibility relationships) they produce more homogeneous cultures than when they copy based on the agent carrying the cultural trait. We discuss the implications of considering cultural systems and filters in the dynamics of cultural change.

Keywords [en]
cultural evolution, cultural selection, cultural systems, social learning
National Category
Other Mathematics Social Sciences Interdisciplinary Other Humanities not elsewhere specified Evolutionary Biology
Research subject
Mathematics/Applied Mathematics
Identifiers
URN: urn:nbn:se:mdh:diva-54199DOI: 10.31219/osf.io/hzmqgOAI: oai:DiVA.org:mdh-54199DiVA, id: diva2:1554372
Funder
Knut and Alice Wallenberg Foundation, 2015.0005Available from: 2021-05-12 Created: 2021-05-12 Last updated: 2021-12-15Bibliographically approved

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Jansson, Fredrik

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  • nn-NB
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  • Other locale
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