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Emergence of collective memories
Umeå University, Faculty of Science and Technology, Department of Physics. (IceLab)
University of Virginia.
Umeå University, Faculty of Science and Technology, Department of Physics. (IceLab)ORCID iD: 0000-0003-2156-1096
2010 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 5, no 9, e12522- p.Article in journal (Refereed) Published
Abstract [en]

Background We understand the dynamics of the world around us as by associating pairs of events, where one event has some influence on the other. These pairs of events can be aggregated into a web of memories representing our understanding of an episode of history. The events and the associations between them need not be directly experienced—they can also be acquired by communication. In this paper we take a network approach to study the dynamics of memories of history.

Methodology/Principal Findings First we investigate the network structure of a data set consisting of reported events by several individuals and how associations connect them. We focus our measurement on degree distributions, degree correlations, cycles (which represent inconsistencies as they would break the time ordering) and community structure. We proceed to model effects of communication using an agent-based model. We investigate the conditions for the memory webs of different individuals to converge to collective memories, how groups where the individuals have similar memories (but different from other groups) can form.

Conclusions/Significance Our work outlines how the cognitive representation of memories and social structure can co-evolve as a contagious process. We generate some testable hypotheses including that the number of groups is limited as a function of the total population size.

Place, publisher, year, edition, pages
Public library of science , 2010. Vol. 5, no 9, e12522- p.
Keyword [en]
autobiographical memory; networks; holocaust
National Category
Psychology Physical Sciences
URN: urn:nbn:se:umu:diva-35772DOI: 10.1371/journal.pone.0012522ISI: 000281456100020OAI: diva2:347003
Available from: 2010-09-02 Created: 2010-09-02 Last updated: 2014-06-10Bibliographically approved

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