Evidence map›Paper›PMID 30763951›Full record

ArticleSleep2019

Circadian phenotype impacts the brain's resting-state functional connectivity, attentional performance, and sleepiness.

Elise R Facer-Childs, Brunno M Campos, Benita Middleton, Debra J Skene, Andrew P Bagshaw

Open access · hybridAbstract read
In one paragraph

Article in Sleep, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

42 citing papers in PubMed, 100 citations in OpenAlex.

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  10. Diurnal Fluctuations in Steroid Hormones Tied to Variation in Intrinsic Functional Connectivity in a Densely Sampled Male.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
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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 2 countries.

Elise R Facer-ChildsSchool of Biosciences, University of Birmingham, Birmingham, UK.
Brunno M CamposSchool of Medical Sciences, University of Campinas, Campinas - SP, Brazil.
Benita MiddletonFaculty of Health and Medical Sciences, University of Surrey, Guildford, UK.
Debra J SkeneFaculty of Health and Medical Sciences, University of Surrey, Guildford, UK.
Andrew P BagshawCentre for Human Brain Health, University of Birmingham, Birmingham, UK.
University of Birmingham · GBUniversity of Surrey · GBUniversidade Estadual de Campinas (UNICAMP) · BR

Funding

Biotechnology and Biological Sciences Research Council BB/J014532/1Wellcome TrustWellcome Trust 204846/Z/16/Z
6 · The paper itself

Abstract

introductionFunctional connectivity (FC) of the human brain's intrinsically connected networks underpins cognitive functioning and disruptions of FC are associated with sleep and neurological disorders. However, there is limited research on the impact of circadian phenotype and time of day on FC. STUDY

objectivesThe aim of this study was to investigate resting-state FC of the default mode network (DMN) in Early and Late circadian phenotypes over a socially constrained day.

methodsThirty-eight healthy individuals (14 male, 22.7 ± 4.2 years) categorized as Early (n = 16) or Late (n = 22) using the Munich ChronoType Questionnaire took part. Following a 2-week baseline of actigraphy coupled with saliva samples for melatonin and cortisol rhythms, participants underwent testing at 14:00 hours, 20:00 hours, and 08:00 hours the following morning. Testing consisted of resting-state functional magnetic resonance imaging (fMRI), a structural T1 scan, attentional cognitive performance tasks, and self-reported daytime sleepiness. Seed-based FC analysis from the medial prefrontal and posterior cingulate cortices of the DMN was performed, compared between groups and linked with behavioral data.

resultsFundamental differences in the DMN were observed between Early and Late circadian phenotypes. Resting-state FC of the DMN predicted individual differences in attention and subjective ratings of sleepiness.

conclusionDifferences in FC of the DMN may underlie the compromised attentional performance and increased sleepiness commonly associated with Late types when they conform to a societally constrained day that does not match their intrinsic circadian phenotype.

Indexed as

SleepinessActigraphyAdolescentAdultAttentionBrainBrain MappingCircadian RhythmFemaleHumansMagnetic Resonance ImagingMaleNerve NetPhenotypePsychomotor PerformanceSleepattentional performancecircadian phenotypecircadian rhythmsdefault mode networkresting-state functional magnetic resonance imaging (fMRI)sleepsleepiness

Identifiers

PMID30763951
PMCPMC6519915
OpenAlexW2913373230

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.