Evidence map›Paper›PMID 39087903›Full record

ArticleHuman brain mapping2024

More widespread functionality of posterior language area in patients with brain tumors.

Riho Nakajima, Takahiro Osada, Masashi Kinoshita, Akitoshi Ogawa, Hirokazu Okita, Seiki Konishi, Mitsutoshi Nakada

Abstract read
In one paragraph

Article in Human brain mapping, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Riho NakajimaDepartment of Occupational Therapy, Faculty of Health Science, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.
Takahiro OsadaDepartment of Neurophysiology, Juntendo University School of Medicine, Tokyo, Japan.ORCID 0000-0002-3743-3200
Masashi KinoshitaDepartment of Neurosurgery, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.
Akitoshi OgawaDepartment of Neurophysiology, Juntendo University School of Medicine, Tokyo, Japan.ORCID 0000-0003-1247-445X
Hirokazu OkitaDepartment of Physical Medicine and Rehabilitation, Kanazawa University Hospital, Kanazawa, Japan.
Seiki KonishiDepartment of Neurophysiology, Juntendo University School of Medicine, Tokyo, Japan.
Mitsutoshi NakadaDepartment of Neurosurgery, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.ORCID 0000-0001-9419-6101

Funding

Japan Society for the Promotion of Science 20K21649Japan Society for the Promotion of Science 21H03301Japan Society for the Promotion of Science 21K19705Japan Society for the Promotion of Science 22K18397
6 · The paper itself

Abstract

Damage to the posterior language area (PLA), or Wernicke's area causes cortical reorganization in the corresponding regions of the contralateral hemisphere. However, the details of reorganization within the ipsilateral hemisphere are not fully understood. In this context, direct electrical stimulation during awake surgery can provide valuable opportunities to investigate neuromodulation of the human brain in vivo, which is difficult through the non-invasive approaches. Thus, in this study, we aimed to investigate the characteristics of the cortical reorganization of the PLA within the ipsilateral hemisphere. Sixty-two patients with left hemispheric gliomas were divided into groups depending on whether the lesion extended to the PLA. All patients underwent direct cortical stimulation with a picture-naming task. We further performed functional connectivity analyses using resting-state functional magnetic resonance imaging (MRI) in a subset of patients and calculated betweenness centrality, an index of the network importance of brain areas. During direct cortical stimulation, the regions showing positive (impaired) responses in the non-PLA group were localized mainly in the posterior superior temporal gyrus (pSTG), whereas those in the PLA group were widely distributed from the pSTG to the posterior supramarginal gyrus (pSMG). Notably, the percentage of positive responses in the pSMG was significantly higher in the PLA group (47%) than in the non-PLA group (8%). In network analyses of functional connectivity, the pSMG was identified as a hub region with high betweenness centrality in both the groups. These findings suggest that the language area can spread beyond the PLA to the pSMG, a hub region, in patients with lesion progression to the pSTG. The change in the pattern of the language area may be a compensatory mechanism to maintain efficient brain networks.

Indexed as

Brain NeoplasmsMagnetic Resonance ImagingNerve NetWernicke AreaAdultAgedBrain MappingConnectomeElectric StimulationFemaleGliomaHumansLanguageMaleMiddle AgedParietal Lobedirect electrical stimulationgliomaposterior language areareorganizationresting‐state functional magnetic resonance imagingWernicke's area

Identifiers

PMID39087903
PMCPMC11293139

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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.