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The effects of episodic context on memory integration

Liu, Zhenghao LU ; Johansson, Mikael LU orcid ; Johansson, Roger LU orcid and Bramão, Inês LU orcid (2024) In Scientific Reports 14(1).
Abstract

Information encountered in different events, such as people and objects, can be interlinked in memory. Such memory integration supports novel inferences about the world. This study investigates the role of episodic context on memory integration in two experiments using an associative inference task. Participants encoded events with overlapping (AB and BC) and non-overlapping associations (XY) presented in the same or different episodic contexts. Inference performance across events (AC) was tested in the absence (Experiment 1) and in the presence (Experiment 2) of the encoding context. Our data show that inferences across events encoded in the same context were more accurate, faster, and made with greater confidence compared to those... (More)

Information encountered in different events, such as people and objects, can be interlinked in memory. Such memory integration supports novel inferences about the world. This study investigates the role of episodic context on memory integration in two experiments using an associative inference task. Participants encoded events with overlapping (AB and BC) and non-overlapping associations (XY) presented in the same or different episodic contexts. Inference performance across events (AC) was tested in the absence (Experiment 1) and in the presence (Experiment 2) of the encoding context. Our data show that inferences across events encoded in the same context were more accurate, faster, and made with greater confidence compared to those encoded in different contexts. However, this effect was observed only when the context was presented during testing, suggesting that context enhances associative inferences by facilitating retrieval of events associated with that context. These findings demonstrate that revisiting the encoding context promotes memory integration by providing privileged access to contextually associated memory traces and facilitating their flexible recombination to form novel inferences.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Associative inference, Episodic context, Episodic memory, Flexible retrieval, Integrative encoding, Memory integration
in
Scientific Reports
volume
14
issue
1
article number
30159
publisher
Nature Publishing Group
external identifiers
  • pmid:39627443
  • scopus:85211414610
ISSN
2045-2322
DOI
10.1038/s41598-024-82004-7
project
When remembering affects new learning: Temporal dynamics of memory integration revealed by EEG and machine learning techniques
language
English
LU publication?
yes
additional info
Publisher Copyright: © The Author(s) 2024.
id
5aaf76c4-ffcb-457b-8ad6-2d29661084b7
date added to LUP
2024-12-20 12:26:34
date last changed
2025-07-05 04:53:26
@article{5aaf76c4-ffcb-457b-8ad6-2d29661084b7,
  abstract     = {{<p>Information encountered in different events, such as people and objects, can be interlinked in memory. Such memory integration supports novel inferences about the world. This study investigates the role of episodic context on memory integration in two experiments using an associative inference task. Participants encoded events with overlapping (AB and BC) and non-overlapping associations (XY) presented in the same or different episodic contexts. Inference performance across events (AC) was tested in the absence (Experiment 1) and in the presence (Experiment 2) of the encoding context. Our data show that inferences across events encoded in the same context were more accurate, faster, and made with greater confidence compared to those encoded in different contexts. However, this effect was observed only when the context was presented during testing, suggesting that context enhances associative inferences by facilitating retrieval of events associated with that context. These findings demonstrate that revisiting the encoding context promotes memory integration by providing privileged access to contextually associated memory traces and facilitating their flexible recombination to form novel inferences.</p>}},
  author       = {{Liu, Zhenghao and Johansson, Mikael and Johansson, Roger and Bramão, Inês}},
  issn         = {{2045-2322}},
  keywords     = {{Associative inference; Episodic context; Episodic memory; Flexible retrieval; Integrative encoding; Memory integration}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{1}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Scientific Reports}},
  title        = {{The effects of episodic context on memory integration}},
  url          = {{http://dx.doi.org/10.1038/s41598-024-82004-7}},
  doi          = {{10.1038/s41598-024-82004-7}},
  volume       = {{14}},
  year         = {{2024}},
}