Evidence map›Paper›PMID 28163143›Full record

ArticleNeuroImage2018

On the detection of high frequency correlations in resting state fMRI.

Cameron Trapp, Kishore Vakamudi, Stefan Posse

Abstract read
In one paragraph

Article in NeuroImage, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Inhibitory Decay and Supercritical Brain Dynamics During Sleep Deprivation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
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  16. The Role of the Cerebellum in Tremor - Evidence from Neuroimaging.Tremor and other hyperkinetic movements (New York, N.Y.) · 2021
    Review
  17. Article
  18. Review
  19. Article
  20. 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.

Cameron TrappDepartment of Neurology, University of New Mexico, Albuquerque, NM, United States; Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, United States.
Kishore VakamudiDepartment of Neurology, University of New Mexico, Albuquerque, NM, United States; Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, United States.
Stefan PosseDepartment of Neurology, University of New Mexico, Albuquerque, NM, United States; Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, United States; Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, NM, United States. Electronic address: sposse@unm.edu.

Funding

Transcranial Direct Current Stimulation for Treatment of Auditory Verbal HalluciP20GM103472 · NIGMS · THE MIND RESEARCH NETWORK · PI CALHOUN, VINCE D · 2012 to 2017
$14.3M
Multivariate methods for identifying multitask/multimodal brain imaging biomarkersR01EB006841 · NIBIB · THE MIND RESEARCH NETWORK · PI VINCE D CALHOUN, Sergey Plis · 2007 to 2026
$9.8M
NEURAL MECHANISMS OF SCHIZOPHRENIAP20RR021938 · NCRR · THE MIND RESEARCH NETWORK · PI HANLON, FAITH MARIE · 2008 to 2011
$9.4M
Unified multivariate data-driven solutions for static and dynamic brain connectivityR01EB020407 · NIBIB · THE MIND RESEARCH NETWORK · PI ADALI, TULAY, CALHOUN, VINCE D · 2015 to 2018
$2.7M
High-Speed fMRI of Resting State ConnectivityR21EB018494 · NIBIB · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI POSSE, STEFAN · 2015 to 2016
$459k
High-Frequency Resting State Connectivity fMRIR21EB022803 · NIBIB · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI POSSE, STEFAN · 2017 to 2018
$428k
NCRR NIH HHS P20 RR021938NIBIB NIH HHS R01 EB006841NIBIB NIH HHS R01 EB020407NIBIB NIH HHS R21 EB018494NIBIB NIH HHS R21 EB022803NIGMS NIH HHS P20 GM103472
6 · The paper itself

Abstract

Current studies of resting-state connectivity rely on coherent signal fluctuations at frequencies below 0.1 Hz, however, recent studies using high-speed fMRI have shown that fluctuations above 0.5 Hz may exist. This study replicates the feasibility of measuring high frequency (HF) correlations in six healthy controls and a patient with a brain tumor while analyzing non-physiological signal sources via simulation. Resting-state data were acquired using a high-speed multi-slab echo-volumar imaging pulse sequence with 136 ms temporal resolution. Bandpass frequency filtering in combination with sliding window seed-based connectivity analysis using running mean of the correlation maps was employed to map HF correlations up to 3.7 Hz. Computer simulations of Rician noise and the underlying point spread function were analyzed to estimate baseline spatial autocorrelation levels in four major networks (auditory, sensorimotor, visual, and default-mode). Using seed regions based on Brodmann areas, the auditory and default-mode networks were observed to have significant frequency band dependent HF correlations above baseline spatial autocorrelation levels. Correlations in the sensorimotor network were at trend level. The auditory network was still observed using a unilateral single voxel seed. In the patient, HF auditory correlations showed a spatial displacement near the tumor consistent with the displacement seen at low frequencies. In conclusion, our data suggest that HF connectivity in the human brain may be observable with high-speed fMRI, however, the detection sensitivity may depend on the network observed, data acquisition technique, and analysis method.

Indexed as

AdultAuditory CortexBrain MappingFemaleHumansImage Interpretation, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedNerve NetRestYoung AdultFunctional MRIHigh frequencyResting stateSeed-based connectivitySpatial autocorrelations

Identifiers

PMID28163143
PMCPMC5540810

What OpenQuestion holds

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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.