Evidence map›Paper›PMID 23384528›Full record

ArticleNeuroImage2013

Ultra high-resolution fMRI and electrophysiology of the rat primary somatosensory cortex.

Yen-Yu Ian Shih, You-Yin Chen, Hsin-Yi Lai, Yu-Chieh Jill Kao, Bai-Chuang Shyu, Timothy Q Duong

Abstract read
In one paragraph

Article in NeuroImage, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Article
  2. The Cerebellar Connectome.Cerebellum (London, England) · 2026
    Article
  3. Cerebral blood flow is modulated by astrocytic cAMP elevation independently of IPProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. High spatiotemporal vessel-specific hemodynamic mapping with multi-echo single-vessel fMRI.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Review
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.

Yen-Yu Ian ShihDepartment of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA. shihy@unc.edu
You-Yin Chen
Hsin-Yi Lai
Yu-Chieh Jill Kao
Bai-Chuang Shyu
Timothy Q Duong

Funding

INSTITUTE FOR INTEGRATION OF MEDICINE & SCIENCE: A PARTNERSHIP TO IMPROVE HEALTHUL1RR025767 · NCRR · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI CLARK, ROBERT A · 2008 to 2011
$23.8M
Institute for Integration of Medicine & Science: A Partnership to Improve HealthUL1TR001120 · NCATS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI CLARK, ROBERT A, HARGREAVES, KENNETH M · 2013 to 2017
$16.5M
Institute for Integration of Medicine & Science: A Partnership to Improve HealthUL1TR000149 · NCATS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI CLARK, ROBERT A · 2012 to 2013
$6.8M
Stroke Imaging of Conscious RatsR01NS045879 · NINDS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI DUONG, TIMOTHY Q. · 2004 to 2014
$3.1M
NCATS NIH HHS UL1 TR000149NCATS NIH HHS UL1 TR001120NCRR NIH HHS UL1 RR025767NCRR NIH HHS UL1RR025767NINDS NIH HHS R01 NS045879NINDS NIH HHS R01 NS45879
6 · The paper itself

Abstract

High-resolution functional-magnetic-resonance-imaging (fMRI) has been used to study brain functions at increasingly finer scale, but whether fMRI can accurately reflect layer-specific neuronal activities is less well understood. The present study investigated layer-specific cerebral-blood-volume (CBV) fMRI and electrophysiological responses in the rat cortex. CBV fMRI at 40×40 μm in-plane resolution was performed on an 11.7-T scanner. Electrophysiology used a 32-channel electrode array that spanned the entire cortical depth. Graded electrical stimulation was used to study activations in different cortical layers, exploiting the notion that most of the sensory-specific neurons are in layers II-V and most of the nociceptive-specific neurons are in layers V-VI. CBV response was strongest in layer IV of all stimulus amplitudes. Current source density analysis showed strong sink currents at cortical layers IV and VI. Multi-unit activities mainly appeared at layers IV-VI and peaked at layer V. Although our measures showed scaled activation profiles during modulation of stimulus amplitude and failed to detect specific recruitment at layers V and VI during noxious electrical stimuli, there appears to be discordance between CBV fMRI and electrophysiological peak responses, suggesting neurovascular uncoupling at laminar resolution. The technique implemented in the present study offers a means to investigate intracortical neurovascular function in the normal and diseased animal models at laminar resolution.

Indexed as

AnimalsData Interpretation, StatisticalElectric StimulationElectromagnetic FieldsElectrophysiologyForelimbMagnetic Resonance ImagingMaleRatsRats, Sprague-DawleyRespiration, ArtificialSomatosensory CortexStereotaxic Techniques

Identifiers

PMID23384528
PMCPMC3733488

What OpenQuestion holds

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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.