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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
Removing the glass ceilings: diverse mechanisms for social cohesion
Dennis Papadopoulos1,2, Kristin Andrews3, Jenny Michlich4
1Seneca Polytechnic, Toronto, ON, Canada d.v.papadopoulos@gmail.com.
Abstract:
Dunbar suggests that social stressors set "glass ceilings" on the evolution of mammalian group size and cohesion. We argue that this glass ceiling narrative conceals three contentious anthropocentric assumptions. First, large stable groups would always be beneficial. Second, grooming is an indicator for maintaining group cohesion. Third, group size is primarily limited by cognitive or behavioral incapacity. We challenge all three assumptions.
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