Collective memory shapes the organization of individual memories in the medial prefrontal cortex

Pierre Gagnepain (), Thomas Vallée, Serge Heiden, Matthieu Decorde, Jean-Luc Gauvain, Antoine Laurent, Carine Klein-Peschanski, Fausto Viader, Denis Peschanski and Francis Eustache
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Pierre Gagnepain: INSERM, EPHE, UNICAEN, Normandie Univ., PSL Research University, CHU de Caen, Cyceron
Thomas Vallée: INSERM, EPHE, UNICAEN, Normandie Univ., PSL Research University, CHU de Caen, Cyceron
Serge Heiden: CNRS, ENS de Lyon, Université de Lyon
Matthieu Decorde: CNRS, ENS de Lyon, Université de Lyon
Jean-Luc Gauvain: CNRS, Université Paris-Saclay
Antoine Laurent: CNRS, Université Paris-Saclay
Carine Klein-Peschanski: CNRS, HESAM Université, Université de Paris 1 Panthéon Sorbonne, EHESS, UMR8209, European Centre for Sociology and Political Science (CESSP)
Fausto Viader: INSERM, EPHE, UNICAEN, Normandie Univ., PSL Research University, CHU de Caen, Cyceron
Denis Peschanski: CNRS, HESAM Université, Université de Paris 1 Panthéon Sorbonne, EHESS, UMR8209, European Centre for Sociology and Political Science (CESSP)
Francis Eustache: INSERM, EPHE, UNICAEN, Normandie Univ., PSL Research University, CHU de Caen, Cyceron

Nature Human Behaviour, 2020, vol. 4, issue 2, 189-200

Abstract: Abstract It has long been hypothesized that individual recollection fits collective memory. To look for a collective schema, we analysed the content of 30 years of media coverage of World War II on French national television. We recorded human brain activity using functional magnetic resonance imaging as participants recalled World War II displays at the Caen Memorial Museum following an initial tour. We focused on the medial prefrontal cortex, a key region for social cognition and memory schemas. The organization of individual memories captured using the distribution of the functional magnetic resonance imaging signal in the dorsal part of the medial prefrontal cortex was more accurately predicted by the structure of the collective schema than by various control models of contextual or semantic memory. Collective memory, which exists outside and beyond individuals, can also organize individual memories and constitutes a common mental model that connects people’s memories across time and space.

Date: 2020
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DOI: 10.1038/s41562-019-0779-z

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