Evidence map›Paper›PMID 36916319›Full record

ArticleSleep2023

Sleep restriction effects on sleep spindles in adolescents and relation of these effects to subsequent daytime sleepiness and cognition.

Ian G Campbell, Zoey Y Zhang, Kevin J Grimm

Open access · bronzeAbstract read
In one paragraph

Article in Sleep, 2023. 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
1.1field-weighted citation impact, top 26% 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, 6 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
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

3 authors at 2 institutions in 1 country.

Ian G CampbellDepartment of Psychiatry and Behavioral Sciences, University of California Davis, Sacramento, CA, USA.
Zoey Y ZhangDepartment of Psychiatry and Behavioral Sciences, University of California Davis, Sacramento, CA, USA.
Kevin J GrimmDepartment of Psychology, Arizona State University, Tempe, AZ, USA.
University of California, Davis · USArizona State University · US

Funding

Longitudinal Measurement of the Changing Sleep Need in AdolescenceR01HL116490 · NHLBI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI CAMPBELL, IAN G · 2013 to 2021
$4.5M
NHLBI NIH HHS R01 HL116490
6 · The paper itself

Abstract

STUDY

objectivesLimiting spindle activity via sleep restriction could explain some of the negative cognitive effects of sleep loss in adolescents. The current study evaluates how sleep restriction affects sleep spindle number, incidence, amplitude, duration, and wave frequency and tests whether sleep restriction effects on spindles change across the years of adolescence. The study determines whether sleep restriction effects on daytime sleepiness, vigilance, and cognition are related to changes in sleep spindles.

methodsIn each year of this 3-year longitudinal study, 77 participants, ranging in age from 10 to 16 years, each completed three different time in bed (TIB) schedules: 7, 8.5, or 10 hours in bed for 4 consecutive nights. A computer algorithm detected and analyzed sleep spindles in night four central and frontal electroencephalogram. Objective and self-reported daytime sleepiness and cognition were evaluated on the day following the 4th night.

resultsFor 7 versus 10 hours TIB average all-night frontal and central spindle counts were reduced by 35% and 32%, respectively. Reducing TIB also significantly decreased spindle incidence in the first 5 hours of non-rapid eye movement sleep, produced small but significant reductions in spindle amplitude, and had little to no effect on spindle duration and spindle wave frequency. Sleep restriction effects did not change with age. The reductions in spindle count and incidence were related to daytime sleepiness on the following day but were not related to working memory.

conclusionsThe sleep loss effects on daytime functioning in adolescents are partially mediated by reduced sleep spindles impacting daytime sleepiness.

Indexed as

Disorders of Excessive SomnolenceSleep DeprivationAdolescentChildCognitionHumansLongitudinal StudiesPolysomnographySleepadolescenceelectroencephalogrammaturationsleepinesssleep losssleep spindles

Identifiers

PMID36916319
PMCPMC10413429
OpenAlexW4324128781

What OpenQuestion holds

Textmetadata
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.