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  Evidence against a large effect of sleep in protecting verbal memories from interference

Pöhlchen, D., Pawlizki, A., Gais, S., & Schoenauer, M. (2020). Evidence against a large effect of sleep in protecting verbal memories from interference. JOURNAL OF SLEEP RESEARCH, e13042. doi:10.1111/jsr.13042.

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Genre: Journal Article

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 Creators:
Pöhlchen, Dorothee1, Author           
Pawlizki, Annedore, Author
Gais, Steffen, Author
Schoenauer, Monika, Author
Affiliations:
1IMPRS Translational Psychiatry, Max Planck Institute of Psychiatry, Max Planck Society, Kraepelinstr. 2-10, 80804 Munich, DE, ou_3318616              

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Free keywords: SLOW-WAVE SLEEP; DECLARATIVE MEMORY; CONSOLIDATIONNeurosciences & Neurology; interference; memory consolidation; replication; sleep; stabilization; verbal memory;
 Abstract: The human brain has evolved to acquire novel information rapidly while serving the need to store long-term memories in a stable and lasting form. Presenting interfering information directly after learning can lead to forgetting of the original material. It has been suggested that sleep aids the stabilization of new memories and protects them from interference. Here, we aim to replicate in two separate experiments the claim that sleep protects memories from retroactive interference (Current Biology, 16, 2006 and 1290; PLoS ONE, 4, 2009 and e4117). We let participants study wordlists before letting them sleep for an afternoon nap or for a full night. In a control condition, subjects stayed awake for the same amount of time. After the consolidation interval, participants learnt an interfering wordlist and were tested on memory of the original wordlist. Sleep did not stabilize memory for the original wordlist in either study. We discuss our findings in the light of recent advances in computational neuroscience, and conclude that the stabilizing effect of sleep against interference has been overestimated.

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Language(s): eng - English
 Dates: 2020-04-20
 Publication Status: Published online
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000527057500001
DOI: 10.1111/jsr.13042
 Degree: -

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Title: JOURNAL OF SLEEP RESEARCH
Source Genre: Journal
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Publ. Info: 111 RIVER ST, HOBOKEN 07030-5774, NJ USA : WILEY
Pages: - Volume / Issue: - Sequence Number: e13042 Start / End Page: - Identifier: ISSN: 0962-1105