Future-relevant memories are not selectively strengthened during sleep.

Overnight consolidation processes are thought to operate in a selective manner, such that important (i.e. future-relevant) memories are strengthened ahead of irrelevant information. Using an online protocol, we sought to replicate the seminal finding that the memory benefits of sleep are enhanced wh...

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Autores principales:	Jennifer E Ashton, Scott A Cairney
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ca4fe3af90f94c2cbe2ed41285eaf5b4
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id	oai:doaj.org-article:ca4fe3af90f94c2cbe2ed41285eaf5b4
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spelling	oai:doaj.org-article:ca4fe3af90f94c2cbe2ed41285eaf5b42021-12-02T20:04:24ZFuture-relevant memories are not selectively strengthened during sleep.1932-620310.1371/journal.pone.0258110https://doaj.org/article/ca4fe3af90f94c2cbe2ed41285eaf5b42021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258110https://doaj.org/toc/1932-6203Overnight consolidation processes are thought to operate in a selective manner, such that important (i.e. future-relevant) memories are strengthened ahead of irrelevant information. Using an online protocol, we sought to replicate the seminal finding that the memory benefits of sleep are enhanced when people expect a future test [Wilhelm et al., 2011]. Participants memorised verbal paired associates to a criterion of 60 percent (Experiment 1) or 40 percent correct (Experiment 2) before a 12-hour delay containing overnight sleep (sleep group) or daytime wakefulness (wake group). Critically, half of the participants were informed that they would be tested again the following day, whereas the other half were told that they would carry out a different set of tasks. We observed a robust memory benefit of overnight consolidation, with the sleep group outperforming the wake group in both experiments. However, knowledge of an upcoming test had no impact on sleep-associated consolidation in either experiment, suggesting that overnight memory processes were not enhanced for future-relevant information. These findings, together with other failed replication attempts, show that sleep does not provide selective support to memories that are deemed relevant for the future.Jennifer E AshtonScott A CairneyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11, p e0258110 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jennifer E Ashton Scott A Cairney Future-relevant memories are not selectively strengthened during sleep.
description	Overnight consolidation processes are thought to operate in a selective manner, such that important (i.e. future-relevant) memories are strengthened ahead of irrelevant information. Using an online protocol, we sought to replicate the seminal finding that the memory benefits of sleep are enhanced when people expect a future test [Wilhelm et al., 2011]. Participants memorised verbal paired associates to a criterion of 60 percent (Experiment 1) or 40 percent correct (Experiment 2) before a 12-hour delay containing overnight sleep (sleep group) or daytime wakefulness (wake group). Critically, half of the participants were informed that they would be tested again the following day, whereas the other half were told that they would carry out a different set of tasks. We observed a robust memory benefit of overnight consolidation, with the sleep group outperforming the wake group in both experiments. However, knowledge of an upcoming test had no impact on sleep-associated consolidation in either experiment, suggesting that overnight memory processes were not enhanced for future-relevant information. These findings, together with other failed replication attempts, show that sleep does not provide selective support to memories that are deemed relevant for the future.
format	article
author	Jennifer E Ashton Scott A Cairney
author_facet	Jennifer E Ashton Scott A Cairney
author_sort	Jennifer E Ashton
title	Future-relevant memories are not selectively strengthened during sleep.
title_short	Future-relevant memories are not selectively strengthened during sleep.
title_full	Future-relevant memories are not selectively strengthened during sleep.
title_fullStr	Future-relevant memories are not selectively strengthened during sleep.
title_full_unstemmed	Future-relevant memories are not selectively strengthened during sleep.
title_sort	future-relevant memories are not selectively strengthened during sleep.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/ca4fe3af90f94c2cbe2ed41285eaf5b4
work_keys_str_mv	AT jennifereashton futurerelevantmemoriesarenotselectivelystrengthenedduringsleep AT scottacairney futurerelevantmemoriesarenotselectivelystrengthenedduringsleep
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Future-relevant memories are not selectively strengthened during sleep.

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