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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2021
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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) |
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Medicine R Science Q Samy-Adrien Foudil Claire Pleche Emiliano Macaluso Memory for spatio-temporal contextual details during the retrieval of naturalistic episodes |
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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 |
_version_ |
1718387143349370880 |