Evidence map›Paper›PMID 29426918›Full record

ArticleScientific reports2018

Caffeine Caused a Widespread Increase of Resting Brain Entropy.

Da Chang, Donghui Song, Jian Zhang, Yuanqi Shang, Qiu Ge, Ze Wang

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
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  3. Review
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  5. Article
  6. The effects of intermittent theta burst stimulation (iTBS) on resting-state brain entropy (BEN).Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  7. Article
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  10. Resting state fMRI-based temporal coherence mapping.Imaging neuroscience (Cambridge, Mass.) · 2025
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  11. Article
  12. Article
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  15. Article
  16. Task-induced changes in brain entropy.Journal of neuroscience research · 2024
    Article
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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

6 authors at 2 institutions in 2 countries.

Da ChangCenter for Cognition and Brain Disorders, Department of Psychology, Hangzhou Normal University, Yuhang, Hangzhou, China.
Donghui SongCenter for Cognition and Brain Disorders, Department of Psychology, Hangzhou Normal University, Yuhang, Hangzhou, China.
Jian ZhangCenter for Cognition and Brain Disorders, Department of Psychology, Hangzhou Normal University, Yuhang, Hangzhou, China.
Yuanqi ShangCenter for Cognition and Brain Disorders, Department of Psychology, Hangzhou Normal University, Yuhang, Hangzhou, China.
Qiu GeCenter for Cognition and Brain Disorders, Department of Psychology, Hangzhou Normal University, Yuhang, Hangzhou, China.
Ze WangCenter for Cognition and Brain Disorders, Department of Psychology, Hangzhou Normal University, Yuhang, Hangzhou, China. zewangnew@163.com.
Hangzhou Normal University · CNTemple University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Entropy is an important trait of brain function and high entropy indicates high information processing capacity. We recently demonstrated that brain entropy (BEN) is stable across time and differs between controls and patients with various brain disorders. The purpose of this study was to examine whether BEN is sensitive to pharmaceutical modulations with caffeine. Both cerebral blood flow (CBF) and resting fMRI were collected from sixty caffeine-naïve healthy subjects before and after taking a 200 mg caffeine pill. Our data showed that caffeine reduced CBF in the whole brain but increased BEN across the cerebral cortex with the highest increase in lateral prefrontal cortex, the default mode network (DMN), visual cortex, and motor network, consistent with the beneficial effects of caffeine (such as vigilance and attention) on these areas. BEN increase was correlated to CBF reduction only in several regions (-0.5 < r < -0.4), indicating a neuronal nature for most of the observed BEN alterations. In summary, we showed the first evidence of BEN alterations due to caffeine ingestion, suggesting BEN as a biomarker sensitive to pharmaceutical brain function modulations.

Indexed as

AdultAttentionBrainBrain MappingCaffeineCerebral CortexCerebrovascular CirculationChinaEntropyFemaleHealthy VolunteersHumansMagnetic Resonance ImagingMaleVisual CortexWakefulnessCaffeine

Identifiers

PMID29426918
PMCPMC5807546
OpenAlexW2794350434

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.