{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T17:12:24Z","timestamp":1785431544671,"version":"3.56.0"},"reference-count":60,"publisher":"Wiley","license":[{"start":{"date-parts":[[2020,3,25]],"date-time":"2020-03-25T00:00:00Z","timestamp":1585094400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["16J40093"],"award-info":[{"award-number":["16J40093"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Behavioural Neurology"],"published-print":{"date-parts":[[2020,3,25]]},"abstract":"<jats:p>Previous studies have shown that cognitive impairments in patients with brain tumors are not severe. However, to preserve the postsurgical QOL of patients with brain tumors, it is important to identify \u201cprimary\u201d cognitive functions and associated brain regions that are more vulnerable to cognitive impairments following surgery. The objective of this study was to investigate primary cognitive factors affecting not only simple cognitive tasks but also several other cognitive tasks and associated brain regions. Patients with glioma in the left (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>n<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>33<\/mml:mn><\/mml:math>) and the right (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mi>n<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn>21<\/mml:mn><\/mml:math>) hemisphere participated in the study. Seven neuropsychological tasks from five cognitive domains were conducted pre- and 6 months postoperation. Factor analyses were conducted to identify \u201cprimary\u201d common cognitive functions affecting the task performance in left and right glioma groups. Next, lesion analyses were performed using voxel-based lesion-symptom mapping (VLSM) to identify critical brain regions related to impairments of the primary cognitive functions. Factor analysis revealed two primary cognitive components in each glioma group. The first cognitive component in the left glioma group affected the digit span forward and backward tasks and concept shifting and the letter-digit substitution tasks. VLSM analysis revealed significant regions from the posterior middle temporal gyri to the supramarginal gyrus. The second cognitive component affected verbal memory, and verbal fluency tasks and VLSM analysis indicated two different significant regions, the medial temporal regions and the middle temporal gyrus to the posterior parietal lobes. The first cognitive component in the right glioma group affected positive and negative factor loadings on the task, such that the positive cognitive component affected only the Stroop color-word task. VLSM related to deficits of the Stroop task revealed significant regions in the anterior medial frontal cortex. On the other hand, the negative component affected concept shifting, word fluency, and digit span forward tasks, and VLSM revealed significant regions in the right inferior frontal cortex. It is suggested that primary cognitive functions related to specific brain regions were possibly affected by glioma resection.<\/jats:p>","DOI":"10.1155\/2020\/7941689","type":"journal-article","created":{"date-parts":[[2020,3,25]],"date-time":"2020-03-25T23:30:59Z","timestamp":1585179059000},"page":"1-9","source":"Crossref","is-referenced-by-count":21,"title":["Primary Cognitive Factors Impaired after Glioma Surgery and Associated Brain Regions"],"prefix":"10.1155","volume":"2020","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2955-8385","authenticated-orcid":true,"given":"Chiharu","family":"Niki","sequence":"first","affiliation":[{"name":"Institute of Advanced Biomedical Engineering and Science, Tokyo Women\u2019s Medical University, Tokyo 162-8666, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takatsune","family":"Kumada","sequence":"additional","affiliation":[{"name":"Graduate School of Informatics, Kyoto University, Kyoto 606-8501, 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