Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes

Abstract Episodic memory entails the storage of events together with their spatio-temporal context and retrieval comprises the subjective experience of a link between the person who remembers and the episode itself. We used an encoding procedure with mobile-phones to generate experimentally-controll...

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Autores principales: Samy-Adrien Foudil, Claire Pleche, Emiliano Macaluso
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/5b2ee484ee844ba3b6275dfaecd5f41c
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spelling oai:doaj.org-article:5b2ee484ee844ba3b6275dfaecd5f41c2021-12-02T15:33:02ZMemory for spatio-temporal contextual details during the retrieval of naturalistic episodes10.1038/s41598-021-93960-92045-2322https://doaj.org/article/5b2ee484ee844ba3b6275dfaecd5f41c2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93960-9https://doaj.org/toc/2045-2322Abstract Episodic memory entails the storage of events together with their spatio-temporal context and retrieval comprises the subjective experience of a link between the person who remembers and the episode itself. We used an encoding procedure with mobile-phones to generate experimentally-controlled episodes in the real world: object-images were sent to the participants' phone, with encoding durations up to 3 weeks. In other groups of participants, the same objects were encoded during the exploration of a virtual town (45 min) or using a standard laboratory paradigm, with pairs of object/place-images presented in a sequence of unrelated trials (15 min). At retrieval, we tested subjective memory for the objects (remember/familiar) and memory for the context (place and time). We found that accurate and confident context-memory increased the likelihood of “remember” responses, in all encoding contexts. We also tested the participants' ability to judge the temporal-order of the encoded episodes. Using a model of temporal similarity, we demonstrate scale-invariant properties of order-retrieval, but also highlight the contribution of non-chronological factors. We conclude that the mechanisms governing episodic memory retrieval can operate across a wide range of spatio-temporal contexts and that the multi-dimensional nature of the episodic traces contributes to the subjective experience of retrieval.Samy-Adrien FoudilClaire PlecheEmiliano MacalusoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Samy-Adrien Foudil
Claire Pleche
Emiliano Macaluso
Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes
description Abstract Episodic memory entails the storage of events together with their spatio-temporal context and retrieval comprises the subjective experience of a link between the person who remembers and the episode itself. We used an encoding procedure with mobile-phones to generate experimentally-controlled episodes in the real world: object-images were sent to the participants' phone, with encoding durations up to 3 weeks. In other groups of participants, the same objects were encoded during the exploration of a virtual town (45 min) or using a standard laboratory paradigm, with pairs of object/place-images presented in a sequence of unrelated trials (15 min). At retrieval, we tested subjective memory for the objects (remember/familiar) and memory for the context (place and time). We found that accurate and confident context-memory increased the likelihood of “remember” responses, in all encoding contexts. We also tested the participants' ability to judge the temporal-order of the encoded episodes. Using a model of temporal similarity, we demonstrate scale-invariant properties of order-retrieval, but also highlight the contribution of non-chronological factors. We conclude that the mechanisms governing episodic memory retrieval can operate across a wide range of spatio-temporal contexts and that the multi-dimensional nature of the episodic traces contributes to the subjective experience of retrieval.
format article
author Samy-Adrien Foudil
Claire Pleche
Emiliano Macaluso
author_facet Samy-Adrien Foudil
Claire Pleche
Emiliano Macaluso
author_sort Samy-Adrien Foudil
title Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes
title_short Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes
title_full Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes
title_fullStr Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes
title_full_unstemmed Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes
title_sort memory for spatio-temporal contextual details during the retrieval of naturalistic episodes
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/5b2ee484ee844ba3b6275dfaecd5f41c
work_keys_str_mv AT samyadrienfoudil memoryforspatiotemporalcontextualdetailsduringtheretrievalofnaturalisticepisodes
AT clairepleche memoryforspatiotemporalcontextualdetailsduringtheretrievalofnaturalisticepisodes
AT emilianomacaluso memoryforspatiotemporalcontextualdetailsduringtheretrievalofnaturalisticepisodes
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