Collective memory refers to the memories that individuals have as members of the groups to which they belong, whether small (family, school) or large (political party, nation). Membership in some groups can form a strong part of a person's individual identity. Collective memory is history as people remember it; it is not formal history, because the "memories" of a group are often contradicted by historical fact. Although collective memory is held within individuals, it has rarely been studied by psychologists, because they have concentrated on studying the learning of individual events (such as word lists) in the laboratory or retrieving events of one's life (autobiographical memory). Three facets of collective memory are the focus of this article. First, collective memory can be a body of knowledge about a topic. However, this knowledge base may change over generations of a people. Second, collective memory often portrays an image of a people, and often this image arises from the group's origin story or charter. Third, collective memory is a process; collective remembering can reveal disputes and contestations about how the past should be remembered. One useful purpose of collective memory studies is to capture how different groups and societies remember their history and to discern their shared perspective on the world and how such perspectives differ among groups. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Entropy (Basel)
December 2024
Graduate School of Arts and Sciences, University of Tokyo, Tokyo 153-8902, Japan.
We study the emergence of agency from scratch by using Large Language Model (LLM)-based agents. In previous studies of LLM-based agents, each agent's characteristics, including personality and memory, have traditionally been predefined. We focused on how individuality, such as behavior, personality, and memory, can be differentiated from an undifferentiated state.
View Article and Find Full Text PDFSci Rep
January 2025
INFN-Laboratori Nazionali di Frascati, Via E. Fermi, 54, 00044, Frascati, Italy.
We analytically solve the Landau-Lifshitz equations for the collective magnetization dynamics in a synthetic antiferromagnet (SAF) nanoparticle and uncover a regime of barrier-free switching under a short small-amplitude magnetic field pulse applied perpendicular to the SAF plane. We give examples of specific implementations for forming such low-power and ultra-fast switching pulses. For fully optical, resonant, barrier-free SAF switching we estimate the power per write operation to be pJ, 10-100 times smaller than for conventional quasi-static rotation, which should be attractive for memory applications.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Department of Physics of Complex Systems, Weizmann Institute of Science, 7610001 Rehovot, Israel.
Biological ensembles use collective intelligence to tackle challenges together, but suboptimal coordination can undermine the effectiveness of group cognition. Testing whether collective cognition exceeds that of the individual is often impractical since different organizational scales tend to face disjoint problems. One exception is the problem of navigating large loads through complex environments and toward a given target.
View Article and Find Full Text PDFProc Biol Sci
December 2024
Department of General and Applied Biology, São Paulo State University (UNESP), Rio Claro, Brazil.
The immune system is crucial for organisms to defend against pathogens. Likewise, analogous immune features evolved against similar pressures at the superorganism scale. Upregulating hygiene to the same fungus pathogen is one assumption for convergent immune mechanisms in social insects, although more evidence of immune memory features remains to be confirmed.
View Article and Find Full Text PDFDeath Stud
December 2024
The Louis and Gabi Weisfeld School of Social Work, Bar Ilan University, Israel.
This study explores the phenomenon of memorial stickers commemorating victims of the October 7, 2023, massacre and subsequent Israel-Hamas war. Analyzing 600 stickers collected across Israel, we examine how these artifacts shape personal and collective memory of these tragic events. Using content analysis, visual data analysis, and ethnography of texts, we investigate the stickers' distribution, textual content, and visual elements.
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