Evidence map›Paper›PMID 35997384›Full record

ArticleClocks & sleep2022

The Effect of Light Therapy on Electroencephalographic Sleep in Sleep and Circadian Rhythm Disorders: A Scoping Review.

Teha B Pun, Craig L Phillips, Nathaniel S Marshall, Maria Comas, Camilla M Hoyos, Angela L D'Rozario, Delwyn J Bartlett, Wendy Davis, Wenye Hu, Sharon L Naismith and 4 more

Open access · goldAbstract readScoping Review
PubMed Full text at PMC Publisher
In one paragraph

Article in Clocks & sleep, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.2field-weighted citation impact, top 25% of its field
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

3 citing papers in PubMed, 11 citations in OpenAlex.

  1. Observational
  2. Review
  3. Review
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

14 authors at 4 institutions in 1 country.

Teha B PunFaculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia.ORCID 0000-0002-0071-288X
Craig L PhillipsCIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, Sydney, NSW 2037, Australia.ORCID 0000-0002-9126-6757
Nathaniel S MarshallFaculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia.ORCID 0000-0002-9014-1397
Maria ComasCIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, Sydney, NSW 2037, Australia.ORCID 0000-0002-1368-0274
Camilla M HoyosCIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, Sydney, NSW 2037, Australia.
Angela L D'RozarioCIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, Sydney, NSW 2037, Australia.
Delwyn J BartlettCIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, Sydney, NSW 2037, Australia.
Wendy DavisSchool of Architecture, Design and Planning, The University of Sydney, Sydney, NSW 2008, Australia.
Wenye HuSchool of Architecture, Design and Planning, The University of Sydney, Sydney, NSW 2008, Australia.ORCID 0000-0003-4362-0798
Sharon L NaismithHealthy Brain Ageing Program, Brain and Mind Centre, The University of Sydney, Sydney, NSW 2050, Australia.
Sean CainSchool of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, VIC 3800, Australia.
Svetlana PostnovaCIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, Sydney, NSW 2037, Australia.
Ron R GrunsteinCIRUS, Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, Sydney, NSW 2037, Australia.
Christopher J GordonFaculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia.
The University of Sydney · AUWoolcock Institute of Medical Research · AUMonash University · AURoyal Prince Alfred Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Light therapy is used to treat sleep and circadian rhythm disorders, yet there are limited studies on whether light therapy impacts electroencephalographic (EEG) activity during sleep. Therefore, we aimed to provide an overview of research studies that examined the effects of light therapy on sleep macro- and micro-architecture in populations with sleep and circadian rhythm disorders. We searched for randomized controlled trials that used light therapy and included EEG sleep measures using MEDLINE, PubMed, CINAHL, PsycINFO and Cochrane Central Register of Controlled Trials databases. Five articles met the inclusion criteria of patients with either insomnia or delayed sleep−wake phase disorder (DSWPD). These trials reported sleep macro-architecture outcomes using EEG or polysomnography. Three insomnia trials showed no effect of the timing or intensity of light therapy on total sleep time, wake after sleep onset, sleep efficiency and sleep stage duration compared to controls. Only one insomnia trial reported significantly higher sleep efficiency after evening light therapy (>4000 lx between 21:00−23:00 h) compared with afternoon light therapy (>4000 lx between 15:00−17:00 h). In the only DSWPD trial, six multiple sleep latency tests were conducted across the day (09:00 and 19:00 h) and bright light (2500 lx) significantly lengthened sleep latency in the morning (09:00 and 11:00 h) compared to control light (300 lx). None of the five trials reported any sleep micro-architecture measures. Overall, there was limited research about the effect of light therapy on EEG sleep measures, and studies were confined to patients with insomnia and DSWPD only. More research is needed to better understand whether lighting interventions in clinical populations affect sleep macro- and micro-architecture and objective sleep timing and quality.

Indexed as

circadian rhythm disorderelectroencephalographyinsomnialight therapyquantitative EEG analysissleep disorder

Identifiers

PMID35997384
PMCPMC9397048
OpenAlexW4291014989

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.