title: Damage to the left ventral, arcuate fasciculus and superior longitudinal fasciculus-related pathways induces deficits in object naming, phonological language function and writing, respectively.
abstract: The anatomic localization of brain functions can be characterized via diffusion tensor imaging in patients with brain tumors and neurological symptoms. The goal of the present study was to evaluate the function of the ventral, arcuate fasciculus (AF) and the superior longitudinal fasciculus (SLF)-related language pathways using these techniques by analyzing 9 patients treated in our hospital between 2007 and 2011. In cases 1-3, the left ventral pathways, namely, the inferior longitudinal fasciculus, uncinate fasciculus or inferior fronto-occipital fasciculus, were mainly damaged, and the common dysfunction experienced by these patients was a deficit in object naming. In cases 4-6, the left SLF was mainly damaged, and the common deficit was dysgraphia. In cases 7-9, the left AF was mainly damaged, and almost all language functions related to phonology were abnormal. These results suggest that the left ventral, AF and SLF-related pathways are closely related to visual, auditory and hand-related language function, respectively.
authors: Department of Neurosurgery, Komagome Metropolitan Hospital, Bunkyo-ku, Tokyo, Japan. shinoura@cick.jp
authors: Nobusada
authors: N
authors: Shinoura
authors: Akira
authors: A
authors: Midorikawa
authors: Toshiyuki
authors: T
authors: Onodera
authors: Masanobu
authors: M
authors: Tsukada
authors: Ryozi
authors: R
authors: Yamada
authors: Yusuke
authors: Y
authors: Tabei
authors: Chisato
authors: C
authors: Itoi
authors: Seiko
authors: S
authors: Saito
authors: Kazuo
authors: K
authors: Yagi
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000473:pathology / Q000523:psychology; D005260:Female; D006236:Handwriting; D006801:Humans; D007806:Language Disorders / Q000473:pathology*; D007807:Language Tests; D008297:Male; D008875:Middle Aged; D009413:Nerve Fibers, Myelinated / Q000473:pathology*; D009434:Neural Pathways / Q000473:pathology*; D059906:Neuroimaging; D009483:Neuropsychological Tests; D010296:Parietal Lobe / Q000473:pathology*; D021641:Recognition, Psychology; D013702:Temporal Lobe / Q000473:pathology*