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Immediate as well as delayed post learning sleep but not wakefulness enhances declarative memory consolidation in children

Backhaus, Jutta, Hoeckesfeld, Ralf, Born, Jan, Hohagen, Fritz, Junghanns, Klaus·2008·Neurobiology of Learning and Memory
DOI 10.1016/j.nlm.2007.08.010
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Abstract

While there is mounting evidence for the importance of sleep for declarative memory consolidation in adults, so far this issue has not been investigated in children despite considerable differences in sleep duration and sleep architecture between children and adults. Here, 27 children (aged between 9 and 12yr) were examined on two conditions: on the Sleep-Wake condition, subjects learned word pairs in the evening and delayed recall was tested first in the next morning after sleep and then again in the following evening after daytime wakefulness. On the Wake-Sleep condition, learning took place in the morning and delayed recall was tested in the evening of the same day and again in the next morning after sleep. In both conditions retention of declarative memory was significantly increased only after an interval of sleep that either followed immediately after learning (as in the Sleep-Wake condition) or that followed after daytime wakefulness (as in the Wake-Sleep condition), respectively. The results support the hypothesis that sleep plays an active role in declarative memory consolidation even if delayed and further show for the first time the importance of sleep for declarative memory consolidation during childhood.

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Crossref · 10.1016/j.nlm.2007.08.010

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  • Retention of word pairs across the sleep interval was positively correlated with time in non-REM sleep and negatively with time in REM sleep.

    “Retention of word pairs across the sleep interval was positively correlated with the time spent in non-REM sleep and negatively with the time in REM sleep.”

    From About Sleep's Role in Memory (2013) · cites this paper as [56]

  • Children's recall after sleep was better than after wake intervals and better than before sleep, suggesting a genuine gain of declarative memory produced by intervening sleep.

    “The children's recall performance after sleep was not only better than that after the wake-retention intervals, but also compared with recall performance tested before sleep, suggesting a genuine gain of declarative memory that is produced by intervening sleep in children.”

    From About Sleep's Role in Memory (2013) · cites this paper as [56]

  • Backhaus et al. reported beneficial effects of sleep on consolidation of declarative memories (word pairs) in 9- to 12-year-old children.

    “Backhaus et al. (56) reported beneficial effects of sleep on the consolidation of declarative memories (word pairs) in 9-to 12-yr-old children.”

    From About Sleep's Role in Memory (2013) · cites this paper as [56]

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Authors
Backhaus, J., Hoeckesfeld, R., Born, J., Hohagen, F., & Junghanns, K.
Affiliations
University of Lübeck (DE)
Corresponding author
Backhaus, Jutta
ORCID
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2008-01
Volume
89
Issue
1
Pages
76-80
ISSN
1074-7427 (ISSN-L)
DOI
10.1016/j.nlm.2007.08.010
OpenAlex
W1966189610
Cited by
168
References
34
Citations by year
2026: 3 · 2025: 4 · 2024: 6 · 2023: 6 · 2022: 6 · 2021: 9 · 2020: 15 · 2019: 9 · 2018: 9 · 2017: 13 · 2016: 10 · 2015: 9 · 2014: 12 · 2013: 11 · 2012: 10
FWCI
2.93
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Neurobiology of Learning and Memory (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
sleep-dependent memory consolidation, declarative memory, children, wakefulness, delayed recall, memory retention, sleep architecture, word pair learning
MeSH terms
Age Factors, Child, Female, Humans, Male, Mental Recall, Reference Values, Sleep, Time Factors, Verbal Learning, Wakefulness

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