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  Sleep-dependent memory consolidation in infants protects new episodic memories from existing semantic memories

Friedrich, M., Mölle, M., Friederici, A. D., & Born, J. (2020). Sleep-dependent memory consolidation in infants protects new episodic memories from existing semantic memories. Nature Communications, 11(1): 1298. doi:10.1038/s41467-020-14850-8.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-75F3-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-D76B-0
Genre: Journal Article

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 Creators:
Friedrich, Manuela1, 2, Author              
Mölle, Matthias3, Author
Friederici, Angela D.2, Author              
Born, Jan4, Author
Affiliations:
1Department of Psychology, Humboldt University Berlin, Germany, ou_persistent22              
2Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
3Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Germany, ou_persistent22              
4Center for Integrative Neuroscience, Eberhard Karls University Tübingen, Germany, ou_persistent22              

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Free keywords: Consolidation; Neurophysiology; Psychology
 Abstract: Any experienced event may be encoded and retained in detail as part of our episodic memory, and may also refer and contribute to our generalized knowledge stored in semantic memory. The beginnings of this declarative memory formation are only poorly understood. Even less is known about the interrelation between episodic and semantic memory during the earliest developmental stages. Here, we show that the formation of episodic memories in 14- to 17-month-old infants depends on sleep, subsequent to exposure to novel events. Infant brain responses reveal that, after sleep-dependent consolidation, the newly stored events are not processed semantically, although appropriate lexical-semantic memories are present and accessible by similar events that were not experienced before the nap. We propose that temporarily disabled semantic processing protects precise episodic memories from interference with generalized semantic memories. Selectively restricted semantic access could also trigger semantic refinement, and thus, might even improve semantic memory.

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Language(s): eng - English
 Dates: 2019-03-182020-02-032020-03-10
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1038/s41467-020-14850-8
PMID: 32157080
PMC: PMC7064567
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Project name : -
Grant ID : FR 1336/2–1
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Funding organization : Deutsche Forschungsgemeinschaft
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Grant ID : FR 1336/2–2
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Funding organization : Deutsche Forschungsgemeinschaft
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Grant ID : FR 1336/3-1
Funding program : -
Funding organization : Deutsche Forschungsgemeinschaft

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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 11 (1) Sequence Number: 1298 Start / End Page: - Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723