Replay shapes abstract cognitive maps for efficient social navigation

Jae-Young Son, Marc-Lluís Vives, Apoorva Bhandari () and Oriel FeldmanHall ()
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Jae-Young Son: Brown University
Marc-Lluís Vives: Leiden University
Apoorva Bhandari: Brown University
Oriel FeldmanHall: Brown University

Nature Human Behaviour, 2024, vol. 8, issue 11, 2156-2167

Abstract: Abstract To make adaptive social decisions, people must anticipate how information flows through their social network. While this requires knowledge of how people are connected, networks are too large to have first-hand experience with every possible route between individuals. How, then, are people able to accurately track information flow through social networks? Here we find that people immediately cache abstract knowledge about social network structure as they learn who is friends with whom, which enables the identification of efficient routes between remotely connected individuals. These cognitive maps of social networks, which are built while learning, are then reshaped through overnight rest. During these extended periods of rest, a replay-like mechanism helps to make these maps increasingly abstract, which privileges improvements in social navigation accuracy for the longest communication paths that span distinct communities within the network. Together, these findings provide mechanistic insight into the sophisticated mental representations humans use for social navigation.

Date: 2024
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DOI: 10.1038/s41562-024-01990-w

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