Evidence map›Paper›PMID 28137626›Full record

ArticleMagnetic resonance imaging2017

Reliability of the depth-dependent high-resolution BOLD hemodynamic response in human visual cortex and vicinity.

Jung Hwan Kim, David Ress

Abstract read
In one paragraph

Article in Magnetic resonance imaging, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Towards whole brain mapping of the hemodynamic response function.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Dynamics of the cerebral blood flow response to brief neural activity in human visual cortex.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. 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

2 authors at 1 institution in 1 country.

Jung Hwan KimDepartment of Neuroscience, Core for Advanced MR Imaging, Baylor College of Medicine, Houston, TX 77030, USA. Electronic address: junghwan.kim@bcm.edu.
David RessDepartment of Neuroscience, Core for Advanced MR Imaging, Baylor College of Medicine, Houston, TX 77030, USA.
Baylor College of Medicine · US

Funding

Measurements and modeling of the hemodynamic response function in human cerebral cortexR01NS095933 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI RESS, DAVID B · 2016 to 2019
$1.8M
Quantitative characterization of human subcortical hemodynamic responseK25HL131997 · NHLBI · BAYLOR COLLEGE OF MEDICINE · PI KIM, JUNG HWAN · 2017 to 2021
$617k
Modeling of transient oxygen delivery in the brainR21HL108143 · NHLBI · UNIVERSITY OF TEXAS AT AUSTIN · PI RESS, DAVID B · 2011 to 2012
$379k
NHLBI NIH HHS K25 HL131997NHLBI NIH HHS R21 HL108143NINDS NIH HHS R01 NS095933
6 · The paper itself

Abstract

Functional magnetic resonance imaging (fMRI) often relies on a hemodynamic response function (HRF), the stereotypical blood oxygen level dependent (BOLD) response elicited by a brief (<4s) stimulus. Early measurements of the HRF used coarse spatial resolutions (≥3mm voxels) that would generally include contributions from white matter, gray matter, and the extra-pial compartment (the space between the pial surface and skull including pial blood vessels) within each voxel. To resolve these contributions, high-resolution fMRI (0.9-mm voxels) was performed at 3T in early visual cortex and its apposed white-matter and extra-pial compartments. The results characterized the depth dependence of the HRF and its reliability during nine fMRI sessions. Significant HRFs were observed in white-matter and extra-pial compartments as well as in gray matter. White-matter HRFs were faster and weaker than in the gray matter, while extra-pial HRFs were comparatively slower and stronger. Depth trends of the HRF peak amplitude were stable throughout a broad depth range that included all three compartments for each session. Across sessions, however, the depth trend of HRF peak amplitudes was stable only in the white matter and deep-intermediate gray matter, while there were strong session-to-session variations in the superficial gray matter and the extra-pial compartment. Thus, high-resolution fMRI can resolve significant and dynamically distinct HRFs in gray matter, white matter, and extra-pial compartments.

Indexed as

AdultBrain MappingFemaleHemodynamicsHumansMagnetic Resonance ImagingMaleMiddle AgedOxygenReproducibility of ResultsVisual CortexYoung AdultOxygenBrief stimulus-evoked neural activityCerebral hemodynamic response functionCortical thicknessPial vascular hemodynamic responseSigned-distance functionWhite matter hemodynamic response

Identifiers

PMID28137626
PMCPMC5410406
OpenAlexW2581845096

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.