Evidence map›Paper›PMID 26194564›Full record

ArticleSleep2015

Sleepiness and Cognitive Performance among Younger and Older Adolescents across a 28-Hour Forced Desynchrony Protocol.

Lora J Wu, Christine Acebo, Ronald Seifer, Mary A Carskadon

Abstract read
In one paragraph

Article in Sleep, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

  1. Trial
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  12. Living Without Temporal Cues: A Case Study.Frontiers in physiology · 2020
    Article
  13. Article
  14. Article
  15. Sex differences in the circadian regulation of sleep and waking cognition in humans.Proceedings of the National Academy of Sciences of the United States of America · 2016
    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

4 authors.

Lora J WuSleep/Wake Research Centre, Massey University, Wellington, New Zealand.
Christine AceboE.P. Bradley Hospital Sleep and Chronobiology Research Laboratory, Providence, RI.
Ronald SeiferDepartment of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI.
Mary A CarskadonE.P. Bradley Hospital Sleep and Chronobiology Research Laboratory, Providence, RI.

Funding

Intrinsic Circadian Period: Development Delayed Phase and Genetic AssociationsR01MH076969 · NIMH · EMMA PENDLETON BRADLEY HOSPITAL · PI CARSKADON, MARY A · 2008 to 2012
$3.0M
CIRCADIAN RHYTHMS, SLEEP, AND DEPRESSION RISK AT PUBERTYR01MH052415 · NIMH · EMMA PENDLETON BRADLEY HOSPITAL · PI CARSKADON, MARY A · 1994 to 2003
$2.2M
SLEEP AND CIRCADIAN RHYTHMS IN CHILDREN AND ADOLESCENTSK05MH001358 · NIMH · EMMA PENDLETON BRADLEY HOSPITAL · PI CARSKADON, MARY A · 1997 to 2001
$187k
NIMH NIH HHS MH01358NIMH NIH HHS MH076969NIMH NIH HHS MH52415NIMH NIH HHS R01 MH052415NIMH NIH HHS R01 MH076969
6 · The paper itself

Abstract

STUDY

objectivesQuantify the homeostatic and circadian effects on sleepiness and performance of adolescents. Examine age-related changes in homeostatic and circadian regulation of sleepiness and performance by comparing younger and older adolescent groups.

designThree-week laboratory study including 12 cycles of a 28-h forced desynchrony protocol.

settingControlled laboratory environment with individual sleep and performance testing rooms and shared common areas.

participantsTwenty-seven healthy adolescents including 16 females. Ages ranged from 9.6-15.2 years and participants were split into younger (n = 14 ages 9-12) and older (n = 13 ages 13-15) groups based on median age split of 13.0 years.

interventionsN/A. MEASUREMENTS AND

resultsTesting occurred every 2 h during scheduled wake periods. Measures included sleep latency during repeated nap opportunities and scores from a computerized neurobehavioral assessment battery including a 10-min psychomotor vigilance task, a digit symbol substitution task, and the Karolinska Sleepiness Scale. Significant main effects of circadian and homeostatic factors were observed, as well as several circadian and homeostatic interaction effects. Age group did not have a significant main effect on sleep and performance data. A significant interaction of circadian phase and age group was found for sleep latency, with younger adolescents showing greater circadian modulation than older teens during the circadian night.

conclusionsAdolescents demonstrated a similar pattern of response to forced desynchrony as reported for adults. Sleepiness and performance were affected by homeostatic and circadian factors, and age group did not interact with homoeostatic and circadian factors for subjective sleepiness and most performance metrics. Younger adolescents had a shorter latency to sleep onset than older during the circadian bin spanning 4 to 8 h after the onset of melatonin secretion.

Indexed as

AdolescentAttentionChildCircadian RhythmCognitionFemaleHomeostasisHumansMaleMelatoninPsychomotor PerformanceSleep StagesTime FactorsWakefulnessMelatoninadolescentscognitive performanceforced desynchronysleepiness

Identifiers

PMID26194564
PMCPMC4667372

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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.