Evidence map›Paper›PMID 28045130›Full record

ArticleScientific reports2017

Sex-related difference in human white matter volumes studied: Inspection of the corpus callosum and other white matter by VBM.

Akihiko Shiino, Yen-Wei Chen, Kenji Tanigaki, Atsushi Yamada, Piers Vigers, Toshiyuki Watanabe, Ikuo Tooyama, Ichiro Akiguchi

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Sex Differences in Human Brain Structure at Birth.Biology of sex differences · 2024
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  11. Article
  12. Article
  13. Review
  14. A Volumetric Study of the Corpus Callosum in the Turkish Population.Journal of neurological surgery. Part B, Skull base · 2022
    Article
  15. Sex and sensitive period differences in potential effects of maltreatment on axial versus radial diffusivity in the corpus callosum.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Article
  16. Measuring Sex Differences in the Corpus Callosum by Undergraduates at a Small and a Large Institution.Journal of undergraduate neuroscience education : JUNE : a publication of FUN, Faculty for Undergraduate Neuroscience · 2022
    Article
  17. Article
  18. Testing the extreme male brain hypothesis: Is autism spectrum disorder associated with a more male-typical brain?Autism research : official journal of the International Society for Autism Research · 2021
    Article
  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

8 authors at 5 institutions in 1 country.

Akihiko ShiinoMolecular Neuroscience Research Center, Shiga University of Medical Science, Ohtsu, Shiga, Japan.
Yen-Wei ChenCollege of Information Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, Japan.
Kenji TanigakiResearch Institute, Shiga Medical Center, Moriyama, Shiga, Japan.
Atsushi YamadaBiomedical Innovation Center, Shiga University of Medical Science, Ohtsu, Shiga, Japan.
Piers VigersMolecular Neuroscience Research Center, Shiga University of Medical Science, Ohtsu, Shiga, Japan.
Toshiyuki WatanabeDepartment of Health Science, Kyoto Koka Women's University, Ukyo-ku, Kyoro, Japan.
Ikuo TooyamaMolecular Neuroscience Research Center, Shiga University of Medical Science, Ohtsu, Shiga, Japan.
Ichiro AkiguchiDepartment of Health Science, Kyoto Koka Women's University, Ukyo-ku, Kyoro, Japan.
Kyoto Koka Women's University · JPShiga University · JPShiga University of Medical Science · JPRitsumeikan University · JPShiga Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has been contended that any observed difference of the corpus callosum (CC) size between men and women is not sex-related but brain-size-related. A recent report, however, showed that the midsagittal CC area was significantly larger in women in 37 brain-size-matched pairs of normal young adults. Since this constituted strong evidence of sexual dimorphism and was obtained from publicly available data in OASIS, we examined volume differences within the CC and in other white matter using voxel-based morphometry (VBM). We created a three-dimensional region of interest of the CC and measured its volume. The VBM statistics were analyzed by permutation test and threshold-free cluster enhancement (TFCE) with the significance levels at FWER < 0.05. The CC volume was significantly larger in women in the same 37 brain-size-matched pairs. We found that the CC genu was the subregion showing the most significant sex-related difference. We also found that white matter in the bilateral anterior frontal regions and the left lateral white matter near to Broca's area were larger in women, whereas there were no significant larger regions in men. Since we used brain-size-matched subjects, our results gave strong volumetric evidence of localized sexual dimorphism of white matter.

Indexed as

Sex CharacteristicsCorpus CallosumFemaleHumansMagnetic Resonance ImagingMaleOrgan SizeSex FactorsWhite Matter

Identifiers

PMID28045130
PMCPMC5206615
OpenAlexW2565517110

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.