Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?

Previous studies have shown that newly encoded memories are more resistant to retroactive interference when participants are allowed to sleep after learning the original material, suggesting a sleep-related strengthening of memories. In the present study, we investigated delayed, long-term effects o...

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Autores principales:	Gaétane Deliens, Rémy Schmitz, Isaline Caudron, Alison Mary, Rachel Leproult, Philippe Peigneux
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ab1bfd49509343d5bbdff1260c200db2
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spelling	oai:doaj.org-article:ab1bfd49509343d5bbdff1260c200db22021-11-18T07:38:06ZDoes recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?1932-620310.1371/journal.pone.0068727https://doaj.org/article/ab1bfd49509343d5bbdff1260c200db22013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23874738/?tool=EBIhttps://doaj.org/toc/1932-6203Previous studies have shown that newly encoded memories are more resistant to retroactive interference when participants are allowed to sleep after learning the original material, suggesting a sleep-related strengthening of memories. In the present study, we investigated delayed, long-term effects of sleep vs. sleep deprivation (SD) on the first post-training night on memory consolidation and resistance to interference. On day 1, participants learned a list of unrelated word pairs (AB), either in the morning or in the evening, then spent the post-training night in a sleep or sleep deprivation condition, in a within-subject paradigm. On day 4, at the same time of day, they learned a novel list of word pairs (AC) in which 50% of the word pairs stemmed with the same word than in the AB list, resulting in retroactive interference. Participants had then to recall items from the AB list upon presentation of the "A" stem. Recall was marginally improved in the evening, as compared to the morning learning group. Most importantly, retroactive interference effects were found in the sleep evening group only, contrary to the hypothesis that sleep exerts a protective role against intrusion by novel but similar learning. We tentatively suggest that these results can be explained in the framework of the memory reconsolidation theory, stating that exposure to similar information sets back consolidated items in a labile form again sensitive to retroactive interference. In this context, sleep might not protect against interference but would promote an update of existing episodic memories while preventing saturation of the memory network due to the accumulation of dual traces.Gaétane DeliensRémy SchmitzIsaline CaudronAlison MaryRachel LeproultPhilippe PeigneuxPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e68727 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gaétane Deliens Rémy Schmitz Isaline Caudron Alison Mary Rachel Leproult Philippe Peigneux Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?
description	Previous studies have shown that newly encoded memories are more resistant to retroactive interference when participants are allowed to sleep after learning the original material, suggesting a sleep-related strengthening of memories. In the present study, we investigated delayed, long-term effects of sleep vs. sleep deprivation (SD) on the first post-training night on memory consolidation and resistance to interference. On day 1, participants learned a list of unrelated word pairs (AB), either in the morning or in the evening, then spent the post-training night in a sleep or sleep deprivation condition, in a within-subject paradigm. On day 4, at the same time of day, they learned a novel list of word pairs (AC) in which 50% of the word pairs stemmed with the same word than in the AB list, resulting in retroactive interference. Participants had then to recall items from the AB list upon presentation of the "A" stem. Recall was marginally improved in the evening, as compared to the morning learning group. Most importantly, retroactive interference effects were found in the sleep evening group only, contrary to the hypothesis that sleep exerts a protective role against intrusion by novel but similar learning. We tentatively suggest that these results can be explained in the framework of the memory reconsolidation theory, stating that exposure to similar information sets back consolidated items in a labile form again sensitive to retroactive interference. In this context, sleep might not protect against interference but would promote an update of existing episodic memories while preventing saturation of the memory network due to the accumulation of dual traces.
format	article
author	Gaétane Deliens Rémy Schmitz Isaline Caudron Alison Mary Rachel Leproult Philippe Peigneux
author_facet	Gaétane Deliens Rémy Schmitz Isaline Caudron Alison Mary Rachel Leproult Philippe Peigneux
author_sort	Gaétane Deliens
title	Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?
title_short	Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?
title_full	Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?
title_fullStr	Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?
title_full_unstemmed	Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?
title_sort	does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/ab1bfd49509343d5bbdff1260c200db2
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Does recall after sleep-dependent memory consolidation reinstate sensitivity to retroactive interference?

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