Individual-level psychology and group-level traits
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Updated: Apr 27, 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
Michael Muthukrishna1, Mark Schaller1
1Department of Psychology,University of British Columbia,Vancouver,BC V6T 1Z4,Canada.michael@psych.ubc.caschaller@psych.ubc.cahttp://www2.psych.ubc.ca/~schaller/schaller.htm.
Abstract:
Psychological research on social influence illuminates many mechanisms through which role differentiation and collaborative interdependence may affect cultural evolution. We focus here on psychological processes that produce specific patterns of asymmetric influence, which in turn can have predictable consequences for the emergence and transmission of group-level traits.
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