Cargando…
The shared and unique neural correlates of personal semantic, general semantic, and episodic memory
One of the most common distinctions in long-term memory is that between semantic (i.e., general world knowledge) and episodic (i.e., recollection of contextually specific events from one’s past). However, emerging cognitive neuroscience data suggest a surprisingly large overlap between the neural co...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10662951/ https://www.ncbi.nlm.nih.gov/pubmed/37987578 http://dx.doi.org/10.7554/eLife.83645 |
_version_ | 1785148615415562240 |
---|---|
author | Tanguay, Annick FN Palombo, Daniela J Love, Brittany Glikstein, Rafael Davidson, Patrick SR Renoult, Louis |
author_facet | Tanguay, Annick FN Palombo, Daniela J Love, Brittany Glikstein, Rafael Davidson, Patrick SR Renoult, Louis |
author_sort | Tanguay, Annick FN |
collection | PubMed |
description | One of the most common distinctions in long-term memory is that between semantic (i.e., general world knowledge) and episodic (i.e., recollection of contextually specific events from one’s past). However, emerging cognitive neuroscience data suggest a surprisingly large overlap between the neural correlates of semantic and episodic memory. Moreover, personal semantic memories (i.e., knowledge about the self and one’s life) have been studied little and do not easily fit into the standard semantic-episodic dichotomy. Here, we used fMRI to record brain activity while 48 participants verified statements concerning general facts, autobiographical facts, repeated events, and unique events. In multivariate analysis, all four types of memory involved activity within a common network bilaterally (e.g., frontal pole, paracingulate gyrus, medial frontal cortex, middle/superior temporal gyrus, precuneus, posterior cingulate, angular gyrus) and some areas of the medial temporal lobe. Yet the four memory types differentially engaged this network, increasing in activity from general to autobiographical facts, from autobiographical facts to repeated events, and from repeated to unique events. Our data are compatible with a component process model, in which declarative memory types rely on different weightings of the same elementary processes, such as perceptual imagery, spatial features, and self-reflection. |
format | Online Article Text |
id | pubmed-10662951 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-106629512023-11-21 The shared and unique neural correlates of personal semantic, general semantic, and episodic memory Tanguay, Annick FN Palombo, Daniela J Love, Brittany Glikstein, Rafael Davidson, Patrick SR Renoult, Louis eLife Neuroscience One of the most common distinctions in long-term memory is that between semantic (i.e., general world knowledge) and episodic (i.e., recollection of contextually specific events from one’s past). However, emerging cognitive neuroscience data suggest a surprisingly large overlap between the neural correlates of semantic and episodic memory. Moreover, personal semantic memories (i.e., knowledge about the self and one’s life) have been studied little and do not easily fit into the standard semantic-episodic dichotomy. Here, we used fMRI to record brain activity while 48 participants verified statements concerning general facts, autobiographical facts, repeated events, and unique events. In multivariate analysis, all four types of memory involved activity within a common network bilaterally (e.g., frontal pole, paracingulate gyrus, medial frontal cortex, middle/superior temporal gyrus, precuneus, posterior cingulate, angular gyrus) and some areas of the medial temporal lobe. Yet the four memory types differentially engaged this network, increasing in activity from general to autobiographical facts, from autobiographical facts to repeated events, and from repeated to unique events. Our data are compatible with a component process model, in which declarative memory types rely on different weightings of the same elementary processes, such as perceptual imagery, spatial features, and self-reflection. eLife Sciences Publications, Ltd 2023-11-21 /pmc/articles/PMC10662951/ /pubmed/37987578 http://dx.doi.org/10.7554/eLife.83645 Text en © 2023, Tanguay et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Neuroscience Tanguay, Annick FN Palombo, Daniela J Love, Brittany Glikstein, Rafael Davidson, Patrick SR Renoult, Louis The shared and unique neural correlates of personal semantic, general semantic, and episodic memory |
title | The shared and unique neural correlates of personal semantic, general semantic, and episodic memory |
title_full | The shared and unique neural correlates of personal semantic, general semantic, and episodic memory |
title_fullStr | The shared and unique neural correlates of personal semantic, general semantic, and episodic memory |
title_full_unstemmed | The shared and unique neural correlates of personal semantic, general semantic, and episodic memory |
title_short | The shared and unique neural correlates of personal semantic, general semantic, and episodic memory |
title_sort | shared and unique neural correlates of personal semantic, general semantic, and episodic memory |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10662951/ https://www.ncbi.nlm.nih.gov/pubmed/37987578 http://dx.doi.org/10.7554/eLife.83645 |
work_keys_str_mv | AT tanguayannickfn thesharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT palombodanielaj thesharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT lovebrittany thesharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT gliksteinrafael thesharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT davidsonpatricksr thesharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT renoultlouis thesharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT tanguayannickfn sharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT palombodanielaj sharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT lovebrittany sharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT gliksteinrafael sharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT davidsonpatricksr sharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory AT renoultlouis sharedanduniqueneuralcorrelatesofpersonalsemanticgeneralsemanticandepisodicmemory |