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Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory
While semantic and episodic memory have been shown to influence each other, uncertainty remains as to how this interplay occurs. We introduce a behavioral representational similarity analysis approach to assess whether semantic space can be subtly re-sculpted by episodic learning. Eighty participant...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10662157/ https://www.ncbi.nlm.nih.gov/pubmed/37985774 http://dx.doi.org/10.1038/s41467-023-42770-w |
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author | Walsh, Catherine R. Rissman, Jesse |
author_facet | Walsh, Catherine R. Rissman, Jesse |
author_sort | Walsh, Catherine R. |
collection | PubMed |
description | While semantic and episodic memory have been shown to influence each other, uncertainty remains as to how this interplay occurs. We introduce a behavioral representational similarity analysis approach to assess whether semantic space can be subtly re-sculpted by episodic learning. Eighty participants learned word pairs that varied in semantic relatedness, and learning was bolstered via either testing or restudying. Next-day recall is superior for semantically related pairs, but there is a larger benefit of testing for unrelated pairs. Analyses of representational change reveal that successful recall is accompanied by a pulling together of paired associates, with cue words in semantically related (but not unrelated) pairs changing more across learning than target words. Our findings show that episodic learning is associated with systematic and asymmetrical distortions of semantic space which improve later recall by making cues more predictive of targets, reducing interference from potential lures, and establishing novel connections within pairs. |
format | Online Article Text |
id | pubmed-10662157 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-106621572023-11-20 Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory Walsh, Catherine R. Rissman, Jesse Nat Commun Article While semantic and episodic memory have been shown to influence each other, uncertainty remains as to how this interplay occurs. We introduce a behavioral representational similarity analysis approach to assess whether semantic space can be subtly re-sculpted by episodic learning. Eighty participants learned word pairs that varied in semantic relatedness, and learning was bolstered via either testing or restudying. Next-day recall is superior for semantically related pairs, but there is a larger benefit of testing for unrelated pairs. Analyses of representational change reveal that successful recall is accompanied by a pulling together of paired associates, with cue words in semantically related (but not unrelated) pairs changing more across learning than target words. Our findings show that episodic learning is associated with systematic and asymmetrical distortions of semantic space which improve later recall by making cues more predictive of targets, reducing interference from potential lures, and establishing novel connections within pairs. Nature Publishing Group UK 2023-11-20 /pmc/articles/PMC10662157/ /pubmed/37985774 http://dx.doi.org/10.1038/s41467-023-42770-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Walsh, Catherine R. Rissman, Jesse Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory |
title | Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory |
title_full | Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory |
title_fullStr | Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory |
title_full_unstemmed | Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory |
title_short | Behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory |
title_sort | behavioral representational similarity analysis reveals how episodic learning is influenced by and reshapes semantic memory |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10662157/ https://www.ncbi.nlm.nih.gov/pubmed/37985774 http://dx.doi.org/10.1038/s41467-023-42770-w |
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