Evidence map›Paper›PMID 27870461›Full record

ArticleJournal of neuroscience research2017

Sexual dimorphism of Broca's region: More gray matter in female brains in Brodmann areas 44 and 45.

Florian Kurth, Lutz Jancke, Eileen Luders

Abstract read
In one paragraph

Article in Journal of neuroscience research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Deletion of the X-chromosomal geneScience translational medicine · 2025
    Article
  3. Article
  4. Article
  5. Pain mechanisms in the transgender individual: a review.Frontiers in pain research (Lausanne, Switzerland) · 2024
    Review
  6. Differences in Cortical Surface Area in Developmental Language Disorder.Neurobiology of language (Cambridge, Mass.) · 2024
    Article
  7. Article
  8. Article
  9. The X factor in neurodegeneration.The Journal of experimental medicine · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Investigating the differential contributions of sex and brain size to gray matter asymmetry.Cortex; a journal devoted to the study of the nervous system and behavior · 2018
    Article
  18. Article
  19. 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

3 authors.

Florian KurthCousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, UCLA School of Medicine, Los Angeles, California.
Lutz JanckeDepartment of Neuropsychology, University of Zurich, Zurich, Switzerland.
Eileen LudersCousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, UCLA School of Medicine, Los Angeles, California.

Funding

Brain and behavior in individuals with intersex conditionsR01HD081720 · NICHD · UNIVERSITY OF CAMBRIDGE · PI HINES, MELISSA, LUEDERS, EILEEN · 2015 to 2020
$1.8M
NICHD NIH HHS R01 HD081720
6 · The paper itself

Abstract

Although a sexual dimorphism in brain structure is generally well established, evidence for sex differences in Brodmann areas (BA) 44 and 45 is inconclusive. This may be due to the difficulty of accurately defining BA 44 and BA 45 in magnetic resonance images, given that these regions are variable in their location and extent and that they do not match well with macroanatomic landmarks. Here we set out to test for possible sex differences in the local gray matter of BA 44/45 by integrating imaging-based signal intensities with cytoarchitectonically defined tissue probabilities in a sample of 50 male and 50 female subjects. In addition to testing for sex differences with respect to left- and right-hemispheric measures of BA 44/45, we also assessed possible sex differences in BA 44/45 asymmetry. Our analyses revealed significantly larger gray matter volumes in females compared with males for BA 44 and BA 45 bilaterally. However, there was a lack of significant sex differences in BA 44/45 asymmetry. These results corroborate reports of a language-related female superiority, particularly with respect to verbal fluency and verbal memory tasks. © 2016 Wiley Periodicals, Inc.

Indexed as

Sex CharacteristicsAdultBroca AreaFemaleFunctional LateralityGray MatterHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedbrainBrocagendergray matterMRIsex

Identifiers

PMID27870461
PMCPMC5119534

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.