Evidence map›Paper›PMID 36875666›Full record

ArticleFrontiers in neuroscience2023

Seasonality of human sleep: Polysomnographic data of a neuropsychiatric sleep clinic.

Aileen Seidler, Katy Sarah Weihrich, Frederik Bes, Jan de Zeeuw, Dieter Kunz

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Seasonal variations in the polysomnographic sleep/wake cycle and activity/rest pattern in the dromedary camel (Camelus dromedarius).Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026
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  10. Altered network efficiency in isolated REM sleep behavior disorder: A multicentric study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  11. Article
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  13. Article
  14. Increased relative abundance ofFrontiers in sleep · 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

5 authors at 3 institutions in 1 country.

Aileen SeidlerSleep Research and Clinical Chronobiology, Berlin Institute of Health, Institute of Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
Katy Sarah WeihrichClinic for Sleep & Chronomedicine, St. Hedwig Hospital, Berlin, Germany.
Frederik BesSleep Research and Clinical Chronobiology, Berlin Institute of Health, Institute of Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
Jan de ZeeuwSleep Research and Clinical Chronobiology, Berlin Institute of Health, Institute of Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
Dieter KunzSleep Research and Clinical Chronobiology, Berlin Institute of Health, Institute of Physiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
Freie Universität Berlin · DEHumboldt-Universität zu Berlin · DESt. Hedwig-Krankenhaus · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

While short-term effects of artificial light on human sleep are increasingly being studied, reports on long-term effects induced by season are scarce. Assessments of subjective sleep length over the year suggest a substantially longer sleep period during winter. Our retrospective study aimed to investigate seasonal variation in objective sleep measures in a cohort of patients living in an urban environment. In 2019, three-night polysomnography was performed on 292 patients with neuropsychiatric sleep disturbances. Measures of the diagnostic second nights were averaged per month and analyzed over the year. Patients were advised to sleep "as usual" including timing, except alarm clocks were not allowed. Exclusion criteria: administration of psychotropic agents known to influence sleep (

Indexed as

circadianclinical datahumanpolysomnographyREMseasonsleepslow wave sleep

Identifiers

PMID36875666
PMCPMC9981644
OpenAlexW4321238590

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.