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Updated: Jan 10, 2026

The Social Dimension of Stress: Experimental Manipulations of Social Support and Social Identity in the Trier Social Stress Test
Published on: November 19, 2015
Spelling out the mechanism: functional support and modified stressor appraisal buffer a cost of increased group size
Julia Ostner1,2, Oliver Schülke1,2
1Department for Behavioral Ecology, https://ror.org/01y9bpm73Georg-August University of Göttingen, Göttingen, Germany jostner@gwdg.de.
Abstract:
Dunbar suggests structural, behavioral, and cognitive mechanisms to mitigate the costs of living in large groups. While we generally concur with the notion of group size effects on female productivity, we call for a more explicit treatment of how functional support alleviates social costs and disagree with the outright dismissal of ecological drivers and phylogenetic inertia.
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