Evidence map›Paper›PMID 38379065›Full record

ReviewNature human behaviour2024

Individual sleep need is flexible and dynamically related to cognitive function.

Anders M Fjell, Kristine B Walhovd

Abstract readReview
PubMed Publisher
In one paragraph

Review in Nature human behaviour, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Deep learning for EEG-based sleep stage classification: a review.Medical & biological engineering & computing · 2026
    Pooled it
  2. Reinforcing sleep education with behavioral change strategies: intervention effects on sleep timing, sleep duration, and academic performance.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
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  12. Sleep Patterns and Human Brain Health.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2025
    Review
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  16. Healthy sleep durations appear to vary across cultures.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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  18. Foods (Basel, Switzerland) · 2025
    Article
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  20. Frontiers in neuroscience · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Anders M FjellCenter for Lifespan Changes in Brain and Cognition, University of Oslo, Oslo, Norway. andersmf@psykologi.uio.no.ORCID 0000-0003-2502-8774
Kristine B WalhovdCenter for Lifespan Changes in Brain and Cognition, University of Oslo, Oslo, Norway.ORCID 0000-0003-1918-1123

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Given that sleep deprivation studies consistently show that short sleep causes neurocognitive deficits, the effects of insufficient sleep on brain health and cognition are of great interest and concern. Here we argue that experimentally restricted sleep is not a good model for understanding the normal functions of sleep in naturalistic settings. Cross-disciplinary research suggests that human sleep is remarkably dependent on environmental conditions and social norms, thus escaping universally applicable rules. Sleep need varies over time and differs between individuals, showing a complex relationship with neurocognitive function. This aspect of sleep is rarely addressed in experimental work and is not reflected in expert recommendations about sleep duration. We recommend focusing on the role of individual and environmental factors to improve our understanding of the relationship between human sleep and cognition.

Indexed as

SleepSleep Wake DisordersBrainCognitionHumansSleep Deprivation

Identifiers

PMID38379065

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.