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Data from: Sociality influences cultural complexity Muthukrishna, Michael; Shulman, Ben W.; Vasilescu, Vlad; Henrich, Joseph
Description
<b>Abstract</b><br/>Archaeological and ethnohistorical evidence suggests a link between a population's size and structure, and the diversity or sophistication of its toolkits or technologies. Addressing these patterns, several evolutionary models predict that both the size and social interconnectedness of populations can contribute to the complexity of its cultural repertoire. Some models also predict that a sudden loss of sociality or of population will result in subsequent losses of useful skills/technologies. Here, we test these predictions with two experiments that permit learners to access either one or five models (teachers). Experiment 1 demonstrates that naive participants who could observe five models, integrate this information and generate increasingly effective skills (using an image editing tool) over 10 laboratory generations, whereas those with access to only one model show no improvement. Experiment 2, which began with a generation of trained experts, shows how learners with access to only one model lose skills (in knot-tying) more rapidly than those with access to five models. In the final generation of both experiments, all participants with access to five models demonstrate superior skills to those with access to only one model. These results support theoretical predictions linking sociality to cumulative cultural evolution.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Experiment1</h4><div class="o-metadata__file-description">Data from Experiment 1. GroupCondition & Male are binary. Ethnicity: 1=African, 2=East Asian, 3=South Asian, 4=Caucasian, 5=Mixed</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Experiment2</h4><div class="o-metadata__file-description">Data from Experiment 1. GroupCondition, Male, NativeSpeaker, Exp.Sailing & Exp.Climbing are binary. Ethnicity: 0=African, 1=East Asian, 2=South Asian, 3=Caucasian, 4=Mixed, 5=Other</div><div class="o-metadata__file-name"></div></div>
Item Metadata
Title |
Data from: Sociality influences cultural complexity
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Creator | |
Date Issued |
2021-05-19
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Description |
<b>Abstract</b><br/>Archaeological and ethnohistorical evidence suggests a link between a population's size and structure, and the diversity or sophistication of its toolkits or technologies. Addressing these patterns, several evolutionary models predict that both the size and social interconnectedness of populations can contribute to the complexity of its cultural repertoire. Some models also predict that a sudden loss of sociality or of population will result in subsequent losses of useful skills/technologies. Here, we test these predictions with two experiments that permit learners to access either one or five models (teachers). Experiment 1 demonstrates that naive participants who could observe five models, integrate this information and generate increasingly effective skills (using an image editing tool) over 10 laboratory generations, whereas those with access to only one model show no improvement. Experiment 2, which began with a generation of trained experts, shows how learners with access to only one model lose skills (in knot-tying) more rapidly than those with access to five models. In the final generation of both experiments, all participants with access to five models demonstrate superior skills to those with access to only one model. These results support theoretical predictions linking sociality to cumulative cultural evolution.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Experiment1</h4><div class="o-metadata__file-description">Data from Experiment 1. GroupCondition & Male are binary. Ethnicity: 1=African, 2=East Asian, 3=South Asian, 4=Caucasian, 5=Mixed</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Experiment2</h4><div class="o-metadata__file-description">Data from Experiment 1. GroupCondition, Male, NativeSpeaker, Exp.Sailing & Exp.Climbing are binary. Ethnicity: 0=African, 1=East Asian, 2=South Asian, 3=Caucasian, 4=Mixed, 5=Other</div><div class="o-metadata__file-name"></div></div>
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Notes |
Dryad version number: 1</p> Version status: submitted</p> Dryad curation status: Published</p> Sharing link: https://datadryad.org/stash/share/GLaTvdCq_UoBGMwyGsdNy8CzKos452a60v3is6FO2So</p> Storage size: 26203</p> Visibility: public</p> |
Date Available |
2020-06-30
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Provider |
University of British Columbia Library
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License |
CC0 1.0
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DOI |
10.14288/1.0397585
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Aggregated Source Repository |
Dataverse
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Item Citations and Data
Licence
CC0 1.0