Collective memory, consensus, and learning explained by social cohesion

2023/11/24 by Jeroen Bruggeman, Bruggeman, Jeroen · 1 citation
Neuroscience · Physics and Astronomy · #Complex Network Analysis Techniques #FOS: Computer and information sciences #FOS: Physical sciences #Neural dynamics and brain function #Opinion Dynamics and Social Influence #Physics and Society (physics.soc-ph) #Social and Information Networks (cs.SI)

paper · pdf · doi:10.48550/arxiv.2311.14386

openalex publication_date 2023/11/24 · openalex created_date 2023/11/28 · openalex updated_date 2026/08/01

Abstract

Humans cluster in social groups where they discuss their shared past, problems, and potential solutions; they learn collectively when they repeat activities; they establish social norms; they synchronize when they sing or dance together; and they bond through social cohesion. A group is more cohesive if its members are closer together in their network and are bonded by multiple connections. Network proximity and redundancy are indicated by the second smallest eigenvalue of the Laplacian matrix of the group network, called the algebraic connectivity. This eigenvalue is key to explaining and predicting the outcomes of said activities.

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