Cited by 156Advanced Neuroimaging Techniques and ApplicationsNeurogenesis and neuroplasticity mechanismsMultiple Sclerosis Research Studies

Unraveling the secrets of white matter--bridging the gap between cellular, animal and human imaging studies

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Walhovd, K.B., Johansen-Berg, H., Káradóttir, R.T.·2014·Neuroscience

Abstract

The CNS white matter makes up about half of the human brain, and with advances in human imaging it is increasingly becoming clear that changes in the white matter play a major role in shaping human behavior and learning. However, the mechanisms underlying these white matter changes remain poorly understood. Within this special issue of Neuroscience on white matter, recent advances in our knowledge of the function of white matter, from the molecular level to human imaging, are reviewed. Collaboration between fields is essential to understand the function of the white matter, but due to differences in methods and field-specific 'language', communication is often hindered. In this review, we try to address this hindrance by introducing the methods and providing a basic background to myelin biology and human imaging as a prelude to the other reviews within this special issue.

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Crossref · 10.1016/j.neuroscience.2014.06.058

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  • Even at 100 μm resolution and ∼17 h scan times, each imaging voxel can contain anywhere from 1,000 to 13,000 axons, over 80 oligodendrocytes, and more than 20 astrocytes.

    “However, even at this 100 μm resolution and ∼17 h scan times, each imaging voxel can contain anywhere from 1,000 to 13,000 axons, over 80 oligodendrocytes, and more than 20 astrocytes (Walhovd et al., 2014).”

    From The role of myelination in measures of white matter integrity: Combination of diffusion tensor imaging and two-photon microscopy of CLARITY intact brains (2017) · cites this paper as Walhovd et al., 2014

    In “Toward a multiscale understanding: From a myelin biology point of view, what does a voxel contain?” (page unavailable), the paper reports 1,000 to over 13,000 axons and averages of 86 oligodendrocytes and 22 astrocytes in a 100 μm-cubed volume of rodent white matter. These support the cited counts, though the glial figures are averages rather than counts guaranteed for each voxel. The passages found do not substantiate the ∼17-hour scan time. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Authors
Walhovd, K. B., Johansen-Berg, H., & Káradóttir, R. T.
Affiliations
  • Oslo University Hospital (NO)
  • Wellcome/MRC Cambridge Stem Cell Institute (GB)
Corresponding author
  • Walhovd, K.B.
  • Káradóttir, R.T.
Venue
Neuroscience
Publisher
Elsevier BV
Published
2014-09
Volume
276
Pages
2-13
ISSN
0306-4522 (ISSN-L)
OpenAlex
W1975478767
Cited by
156
References
79
Citations by year
2026: 10 · 2025: 9 · 2024: 9 · 2023: 8 · 2022: 17 · 2021: 19 · 2020: 13 · 2019: 10 · 2018: 15 · 2017: 14 · 2016: 19 · 2015: 12
FWCI
2.31
Type
journal article
Language
en
Open access
Locations
  • Neuroscience (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Wellcome Trust (WT090955AIA, 090955, 091543/Z/10/Z, 091543)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
white matter, human brain imaging, translational neuroscience, interdisciplinary collaboration, myelination
MeSH terms
Animals, Brain Mapping, Humans, Immunohistochemistry, Magnetic Resonance Imaging, Microscopy, Electron, Myelin Sheath, Neuroglia, Neuroimaging, White Matter

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