scholarly journals A Case of Transcortical Sensory Aphasia Following a Left Frontal Lobe Lesion Involving Broca's Area.

1996 ◽  
Vol 16 (4) ◽  
pp. 322-330 ◽  
Author(s):  
Seiko Ishiguro ◽  
Osamu Kawakami ◽  
Makoto Hashizume ◽  
Akiko Yamashita ◽  
Toshihiko Hamanaka ◽  
...  
Keyword(s):  
Frontal Lobe ◽  
Broca’S Area ◽  
Broca's Area ◽  
Left Frontal Lobe ◽  
Sensory Aphasia ◽  
Frontal Lobe Lesion

scholarly journals Electrophysiologic identification of Broca’s area during frontal lobe tumour surgeries

2016 ◽  
Author(s):  
Nishanth Sampath ◽  
Roopesh Kumar ◽  
Sudhakar Subramaniam ◽  
Senthil Kumar ◽  
Vijay Sankar ◽  
...  
Keyword(s):  
Frontal Lobe ◽  
Broca’S Area ◽  
Broca's Area

scholarly journals Intraoperative subcortical mapping of a language-associated deep frontal tract connecting the superior frontal gyrus to Broca's area in the dominant hemisphere of patients with glioma

2015 ◽  
Vol 122 (6) ◽  
pp. 1390-1396 ◽  
Author(s):  
Masazumi Fujii ◽  
Satoshi Maesawa ◽  
Kazuya Motomura ◽  
Miyako Futamura ◽  
Yuichiro Hayashi ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
White Matter ◽  
Frontal Lobe ◽  
Navigation System ◽  
Broca’S Area ◽  
Language Function ◽  
Broca's Area ◽  
Mr Images ◽  
Language Functions ◽  
Subcortical Mapping

OBJECT The deep frontal pathway connecting the superior frontal gyrus to Broca's area, recently named the frontal aslant tract (FAT), is assumed to be associated with language functions, especially speech initiation and spontaneity. Injury to the deep frontal lobe is known to cause aphasia that mimics the aphasia caused by damage to the supplementary motor area. Although fiber dissection and tractography have revealed the existence of the tract, little is known about its function. The aim of this study was to determine the function of the FAT via electrical stimulation in patients with glioma who underwent awake surgery. METHODS The authors analyzed the data from subcortical mapping with electrical stimulation in 5 consecutive cases (3 males and 2 females, age range 40–54 years) with gliomas in the left frontal lobe. Diffusion tensor imaging (DTI) and tractography of the FAT were performed in all cases. A navigation system and intraoperative MRI were used in all cases. During the awake phase of the surgery, cortical mapping was performed to find the precentral gyrus and Broca's area, followed by tumor resection. After the cortical layer was removed, subcortical mapping was performed to assess language-associated fibers in the white matter. RESULTS In all 5 cases, positive responses were obtained at the stimulation sites in the subcortical area adjacent to the FAT, which was visualized by the navigation system. Speech arrest was observed in 4 cases, and remarkably slow speech and conversation was observed in 1 case. The location of these sites was also determined on intraoperative MR images and estimated on preoperative MR images with DTI tractography, confirming the spatial relationships among the stimulation sites and white matter tracts. Tumor removal was successfully performed without damage to this tract, and language function did not deteriorate in any of the cases postoperatively. CONCLUSIONS The authors identified the left FAT and confirmed that it was associated with language functions. This tract should be recognized by clinicians to preserve language function during brain tumor surgery, especially for tumors located in the deep frontal lobe on the language-dominant side.

scholarly journals A case of Gerstmann syndrome caused by a left frontal lobe lesion.

1997 ◽  
Vol 17 (3) ◽  
pp. 233-240 ◽  
Author(s):  
Hiroko Miyake ◽  
Junichiro Kawamura ◽  
Kazuo Hadano
Keyword(s):  
Frontal Lobe ◽  
Left Frontal Lobe ◽  
Frontal Lobe Lesion

On the Neurocognitive Co-Evolution of Tool Behavior and Language: Insights from the Massive Redeployment Framework

2021 ◽  
Author(s):  
François Osiurak ◽  
Caroline Crétel ◽  
Natalie Uomini ◽  
Chloé Bryche ◽  
Mathieu Lesourd ◽  
...  
Keyword(s):  
Frontal Lobe ◽  
Tool Use ◽  
Cognitive Functions ◽  
Parietal Lobe ◽  
Brain Area ◽  
Critical Role ◽  
Human Cognition ◽  
Broca’S Area ◽  
Broca's Area ◽  
Inferior Parietal Lobe

Understanding the link between brain evolution and the evolution of distinctive features of modern human cognition is a fundamental challenge. A still unresolved question concerns the co-evolution of tool behavior (i.e., tool use or tool making) and language. The shared neurocognitive processes hypothesis suggests that the emergence of the combinatorial component of language skills within the frontal lobe/Broca’s area made possible the complexification of tool-making skills. The importance of frontal lobe/Broca’s area in tool behavior is somewhat surprising with regard to the literature on neuropsychology and cognitive neuroscience, which has instead stressed the critical role of the left inferior parietal lobe. Therefore, to be complete, any version of the shared neurocognitive processes hypothesis needs to integrate the potential interactions between the frontal lobe/Broca’s area and the left inferior parietal lobe as well as their co-evolution at a phylogenetic level. Here we sought to provide first elements of answer through the use of the massive deployment framework, which posits that evolutionarily older brain areas are deployed in more cognitive functions (i.e., they are less specific). We focused on the left parietal cortex, and particularly the left areas PF, PGI, and AIP, which are known to be involved in tool use, language, and motor control, respectively. The deployment of each brain area in different cognitive functions was measured by conducting a meta-analysis of neuroimaging studies. Our results confirmed the pattern of specificity for each brain area and also showed that the left area PGI was far less specific than the left areas PF and AIP. From these findings, we discuss the different evolutionary scenarios depicting the potential co-evolution of the combinatorial and generative components of language and tool behavior in our lineage.

Transcortical Sensory Aphasia following Infarction in the Left Frontal Lobe

2004 ◽  
Vol 52 (2) ◽  
pp. 125-128 ◽  
Author(s):  
Shinichiro Maeshima ◽  
Aiko Osawa ◽  
Yukiko Nakayama ◽  
Jun-ichiro Miki
Keyword(s):  
Frontal Lobe ◽  
Left Frontal Lobe ◽  
Sensory Aphasia

Clinical Progress of Gerstmann's Syndrome with Left Frontal Lobe Lesion: Two Cases

2013 ◽  
Vol 12 (4) ◽  
pp. 114 ◽  
Author(s):  
Hyemi Lee ◽  
Heung-Seok Park ◽  
Minsu Kim ◽  
Yejin Lee ◽  
Juhee Chin ◽  
...  
Keyword(s):  
Frontal Lobe ◽  
Left Frontal Lobe ◽  
Frontal Lobe Lesion ◽  
Gerstmann’S Syndrome

Transcortical Sensory Aphasia after Left Frontal Lobe Infarction: Loss of Functional Connectivity

2017 ◽  
Vol 78 (1-2) ◽  
pp. 15-21 ◽  
Author(s):  
Miseon Kwon ◽  
Woo Hyun Shim ◽  
Sang-Joon Kim ◽  
Jong S. Kim
Keyword(s):  
Functional Connectivity ◽  
Frontal Lobe ◽  
Left Frontal Lobe ◽  
Sensory Aphasia

scholarly journals Right unilateral agraphia due to left frontal lobe lesion.

1999 ◽  
Vol 19 (4) ◽  
pp. 261-267 ◽  
Author(s):  
Machiko Kezuka ◽  
Syuji Kishida ◽  
Mitsuru Kawamura
Keyword(s):  
Frontal Lobe ◽  
Left Frontal Lobe ◽  
Frontal Lobe Lesion
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