Evidence map›Paper›PMID 25611059›Full record

Trial reportPloS one2015

Specific EEG sleep pattern in the prefrontal cortex in primary insomnia.

Joy Perrier, Patrice Clochon, Françoise Bertran, Colette Couque, Jan Bulla, Pierre Denise, Marie-Laure Bocca

Open access · goldAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in PloS one, 2015. 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
1.6field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
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  11. [Characteristics of Sleep Electroencephalographic Power in Chronic Insomnia Patients].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2022
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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

7 authors at 6 institutions in 2 countries.

Joy PerrierNormandie Univ, Caen, 14032, France; UNICAEN, COMETE, Caen, 14032, France; INSERM, U 1075 COMETE, Caen, 14032, France.
Patrice ClochonINSERM, U1077, Caen, 14074, France; UNICAEN, UMR-S1077, Caen, 14074, France; Ecole Pratique des Hautes Etudes, UMR-S1077, Caen, 14074, France.
Françoise BertranCHU de Caen, Department of Clinical Physiology, Caen, 14033, France; INSERM, U1077, Caen, 14074, France; UNICAEN, UMR-S1077, Caen, 14074, France; Ecole Pratique des Hautes Etudes, UMR-S1077, Caen, 14074, France.
Colette CouqueCHU de Caen, Department of Clinical Physiology, Caen, 14033, France.
Jan BullaDepartment of Mathematics, University of Bergen, P.O. Box 7800, 5020 Bergen, Norway.
Pierre DeniseNormandie Univ, Caen, 14032, France; UNICAEN, COMETE, Caen, 14032, France; INSERM, U 1075 COMETE, Caen, 14032, France; CHU de Caen, Department of Clinical Physiology, Caen, 14033, France.
Marie-Laure BoccaNormandie Univ, Caen, 14032, France; UNICAEN, COMETE, Caen, 14032, France; INSERM, U 1075 COMETE, Caen, 14032, France.
Université de Caen Normandie · FRChimie Organique, Médicinale et Extractive et Toxicologie Expérimentale · FRÉcole Pratique des Hautes Études · FRInserm · FRNormandie Université · FRUniversity of Bergen · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good sleepers.

methodsFourteen primary insomnia patients and 11 good sleepers were included in the analysis. Participants completed one night of polysomnography in the sleep lab. Power spectra were calculated during the NREM (Non-rapid eyes movements) and the REM (Rapid eyes movements) sleep periods at prefrontal, occipital, temporal and central electrode positions.

resultsDuring the NREM sleep, the power spectra did not differ between groups in the prefrontal cortex; while primary insomnia patients exhibited a higher beta power spectrum and a lower delta power spectrum compared to good sleepers in other areas. During the REM sleep, the beta1 power spectrum was lower in the prefrontal cortex in primary insomnia patients compared to good sleepers; while no significant difference between groups was obtained for the other areas.

conclusionsThe present study shows a specific prefrontal sleep pattern during the whole sleep period. In addition, we suggest that primary insomnia patients displayed a dysfunction in the reactivation of the limbic system during the REM sleep and we give additional arguments in favor of a sleep-protection mechanism displayed by primary insomnia patients.

Indexed as

ElectroencephalographySleep, REMAdultAgedHumansMaleMiddle AgedPolysomnographyPrefrontal CortexSleep Initiation and Maintenance Disorders

Identifiers

PMID25611059
PMCPMC4303266
OpenAlexW2016555609

What OpenQuestion holds

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LicenceCC BY
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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.