Sentence-level language processing speed in diffuse glioma
Lesion location and contralesional structural variability
Bibliographic Data
| ID | 17537082 |
|---|---|
| Authors | Ryuta Kinno (0000-0002-1905-2869, Showa University Fujigaoka Hospital, corresponding author), Manabu Tamura (Tokyo Women's Medical University), Takashi Maruyama (0000-0001-7959-8831, Tokyo Women's Medical University), Yoshihiro Muragaki (Tokyo Women's Medical University), Ayako Osanai (Showa University Fujigaoka Hospital), Satomi Kubota (Showa University Fujigaoka Hospital), Akinori Futamura (0000-0002-3485-5846, Showa University Fujigaoka Hospital), Kuniyoshi L Sakai (0000-0001-9643-0133, Tokyo University of the Arts) |
| Year | 2026 |
| Volume | 277 |
| Pages | 105751-105751 |
| Publication date | 2026-04-08 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Brain and Language (JOURNAL) |
| Journal identifiers | ISSN: 0093-934X • E-ISSN: 1090-2155 |
| Publisher | Elsevier BV (PUBLISHER) |
| DOI | 10.1016/j.bandl.2026.105751 |
| PMID | 41955816 |
| OpenAlex | W7151837497 |
| Language | EN |
| References cited | 40 |
Diffuse gliomas frequently lead to cognitive deficits, including slowed language processing speed at both the lexical and sentence level. Although sentence-level slowing appears to exert the critical influence on linguistic function in this population, the mechanisms underlying this slowing remain even less well characterized. The present study investigated how lesion location and inter-individual differences in brain structure relate to sentence-level language processing speed in patients with diffuse glioma. We assessed sentence-level language processing speed in 28 patients with left hemispheric glioma and compared their performance with that of 20 healthy participants. All participants performed a picture-sentence matching task comprising two sentence structures: an active sentence condition with subject-object-verb word order and a one-argument condition with subject-verb word order. Region of interest-based lesion-symptom mapping was used to identify lesion sites associated with slowed sentence-level processing speed, while surface-based morphometry was applied to assess cortical thickness and fractal dimension across the entire brain. Slowed sentence-level processing was associated with glioma involving the left superior temporal gyrus, indicating disruption of core language-related regions. In contrast, greater cortical complexity in the contralesional right superior frontal gyrus was associated with faster sentence-level processing speed. Multiple regression analyses further revealed that tumor volume in the left superior temporal gyrus and cortical complexity in the right superior frontal gyrus independently contributed to sentence-level processing speed. Together, these findings highlight how tumor-related damage and inter-individual differences in brain structure jointly shape language performance in diffuse glioma, consistent with a neural reserve framework
Cognition · Fusiform gyrus · Inferior frontal gyrus · Information processing · Lateralization of brain function · Lesion · Sentence · Sentence processing · Superior temporal gyrus · Word processing · Cancer-related cognitive impairment studies · Glioma Diagnosis and Treatment · Neurobiology of Language and Bilingualism
| Highly cited | No |
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