Relating the Past with the Present: Information Integration and Segregation during Ongoing Narrative Processing.
Journal
Journal of cognitive neuroscience
ISSN: 1530-8898
Titre abrégé: J Cogn Neurosci
Pays: United States
ID NLM: 8910747
Informations de publication
Date de publication:
01 05 2021
01 05 2021
Historique:
entrez:
24
8
2021
pubmed:
25
8
2021
medline:
29
10
2021
Statut:
ppublish
Résumé
This study examined how the brain dynamically updates event representations by integrating new information over multiple minutes while segregating irrelevant input. A professional writer custom-designed a narrative with two independent storylines, interleaving across minute-long segments (ABAB). In the last (C) part, characters from the two storylines meet and their shared history is revealed. Part C is designed to induce the spontaneous recall of past events, upon the recurrence of narrative motifs from A/B, and to shed new light on them. Our fMRI results showed storyline-specific neural patterns, which were reinstated (i.e., became more active) during storyline transitions. This effect increased along the processing timescale hierarchy, peaking in the default mode network. Similarly, the neural reinstatement of motifs was found during Part C. Furthermore, participants showing stronger motif reinstatement performed better in integrating A/B and C events, demonstrating the role of memory reactivation in information integration over intervening irrelevant events.
Identifiants
pubmed: 34428791
pii: 98114
doi: 10.1162/jocn_a_01707
pmc: PMC9155984
mid: NIHMS1810666
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1106-1128Subventions
Organisme : NIMH NIH HHS
ID : R01 MH112357
Pays : United States
Organisme : NIMH NIH HHS
ID : R01-MH112357
Pays : United States
Informations de copyright
© 2021 Massachusetts Institute of Technology.
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