Evidence map›Paper›PMID 22619736›Full record

ArticleNeural plasticity2012

Time to be SHY? Some comments on sleep and synaptic homeostasis.

Giulio Tononi, Chiara Cirelli

Registry-linked trialAbstract readComment
In one paragraph

Article in Neural plasticity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02732288 (Exploratory Study of Melatonin Induced Sleep Regularization in Severe Brain Injury), which is not on this map. Cited by 58 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 2 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.

NCT02732288 naterminatednot on this mapstarted 2016, after this paper: background citation

Exploratory Study of Melatonin Induced Sleep Regularization in Severe Brain Injury

TypeinterventionalSponsorRockefeller UniversityRan2016 to 2018Enrolled1ConditionsDisorders of ConsciousnessArmsmelatonin
3 · Its place in the literature

Who cites it

58 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Antidepressant effect of vagal nerve stimulation in epilepsy patients: a systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
    Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. The why and how of sleep-dependent synaptic down-selection.Seminars in cell & developmental biology · 2022
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Effects of sleep and waking on the synaptic ultrastructure.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Giulio TononiDepartment of Psychiatry, University of Wisconsin, Madison 6001 Research Park Boulevard, Madison, WI 53719, USA. gtononi@wisc.edu
Chiara Cirelli

Funding

Sleep Function and Synaptic Homeostasis: Linking Neurobiology and Mental HealthP20MH077967 · NIMH · UNIVERSITY OF WISCONSIN-MADISON · PI TONONI, GIULIO · 2007 to 2010
$3.8M
NIH Director's Pioneer Award (RMI)DP1OD000579 · OD · UNIVERSITY OF WISCONSIN-MADISON · PI TONONI, GIULIO · 2005 to 2009
$3.6M
Synapses and Sleep in Neurodevelopment: A Crucial Interaction at a Critical TimeR01MH091326 · NIMH · UNIVERSITY OF WISCONSIN-MADISON · PI CIRELLI, CHIARA, TONONI, GIULIO · 2010 to 2014
$3.2M
NIH HHS DP1 OD000579NIMH NIH HHS 1R01MH091326NIMH NIH HHS P20 MH077967NIMH NIH HHS R01 MH091326
6 · The paper itself

Abstract

Sleep must serve an essential, universal function, one that offsets the risk of being disconnected from the environment. The synaptic homeostasis hypothesis (SHY) is an attempt to identify this essential function. Its core claim is that sleep is needed to reestablish synaptic homeostasis, which is challenged by the remarkable plasticity of the brain. In other words, sleep is "the price we pay for plasticity." In this issue, M. G. Frank reviewed several aspects of the hypothesis and raised several issues. The comments below provide a brief summary of the motivations underlying SHY and clarify that SHY is a hypothesis not about specific mechanisms, but about a universal, essential function of sleep. This function is the preservation of synaptic homeostasis in the face of a systematic bias toward a net increase in synaptic strength--a challenge that is posed by learning during adult wake, and by massive synaptogenesis during development.

Indexed as

AnimalsHumansNeuronal PlasticitySleepSynapses

Identifiers

PMID22619736
PMCPMC3350977

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.