Evidence map›Paper›PMID 26196666›Full record

ArticleNeuroImage2015

Resting spontaneous activity in the default mode network predicts performance decline during prolonged attention workload.

Danyang Gui, Sihua Xu, Senhua Zhu, Zhuo Fang, Andrea M Spaeth, Yuanyuan Xin, Tingyong Feng, Hengyi Rao

Abstract read
In one paragraph

Article in NeuroImage, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

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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

8 authors at 4 institutions in 2 countries.

Danyang Gui *Center for Functional Neuroimaging, Department of Neurology, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Sihua Xu *Department of Applied Psychology, Guangdong University of Finance and Economics, Guangzhou, China.
Senhua ZhuCenter for Functional Neuroimaging, Department of Neurology, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Zhuo FangCenter for Functional Neuroimaging, Department of Neurology, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Andrea M SpaethCenter for Functional Neuroimaging, Department of Neurology, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Yuanyuan XinSchool of Psychology, Southwest University, Chongqing, China.
Tingyong FengSchool of Psychology, Southwest University, Chongqing, China.
Hengyi RaoCenter for Functional Neuroimaging, Department of Neurology, University of Pennsylvania, Philadelphia, PA, 19104, USA.
University of Pennsylvania · USSouthwest University · CNBeijing Normal University · CNSun Yat-sen University · CN

Funding

TRAINING PROGRAM/RESPIRATORY NEUROBIOLOGY AND SLEEPT32HL007713 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI PACK, ALLAN I · 1992 to 2022
$11.9M
Neural basis for differential vulnerability to sleep deprivationR01HL102119 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI RAO, HENGYI · 2010 to 2014
$2.3M
Neural Correlates of Risk Taking in Smokers before and after Smoking AbstinenceR21DA032022 · NIDA · UNIVERSITY OF PENNSYLVANIA · PI RAO, HENGYI · 2012 to 2013
$410k
NHLBI NIH HHS R01 HL102119NHLBI NIH HHS T32 HL007713NIDA NIH HHS R21 DA032022
6 · The paper itself

Abstract

After continuous and prolonged cognitive workload, people typically show reduced behavioral performance and increased feelings of fatigue, which are known as "time-on-task (TOT) effects". Although TOT effects are pervasive in modern life, their underlying neural mechanisms remain elusive. In this study, we induced TOT effects by administering a 20-min continuous psychomotor vigilance test (PVT) to a group of 16 healthy adults and used resting-state blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI) to examine spontaneous brain activity changes associated with fatigue and performance. Behaviorally, subjects displayed robust TOT effects, as reflected by increasingly slower reaction times as the test progressed and higher self-reported mental fatigue ratings after the 20-min PVT. Compared to pre-test measurements, subjects exhibited reduced amplitudes of low-frequency fluctuation (ALFF) in the default mode network (DMN) and increased ALFF in the thalamus after the test. Subjects also exhibited reduced anti-correlations between the posterior cingulate cortex (PCC) and right middle prefrontal cortex after the test. Moreover, pre-test resting ALFF in the PCC and medial prefrontal cortex (MePFC) predicted subjects' subsequent performance decline; individuals with higher ALFF in these regions exhibited more stable reaction times throughout the 20-min PVT. These results support the important role of both task-positive and task-negative networks in mediating TOT effects and suggest that spontaneous activity measured by resting-state BOLD fMRI may be a marker of mental fatigue.

Indexed as

AdultAttentionBiomarkersBrainBrain MappingFemaleGyrus CinguliHumansMagnetic Resonance ImagingMaleMental FatigueNerve NetPrefrontal CortexPsychomotor PerformanceThalamusTime FactorsBiomarkersAmplitudes of low-frequency fluctuation (ALFF)Default mode network (DMN)FatigueFunctional connectivityTime-on-task (TOT) effects

Identifiers

PMID26196666
PMCPMC4589485
OpenAlexW904295579

What OpenQuestion holds

Textmetadata
LicenceTDM
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.