What's your name again? A review of the Superior Longitudinal and Arcuate Fasciculus evolving nomenclature

2021 ◽  
Author(s):  
João Vítor Miranda Porto de Oliveira ◽  
Antônio Felipe Raquelo‐Menegassio ◽  
Igor Lima Maldonado
Keyword(s):  
Arcuate Fasciculus

Reorganization of the Right Arcuate Fasciculus Following Left Arcuate Fasciculus Resection in Children With Intractable Epilepsy

2011 ◽  
Vol 26 (10) ◽  
pp. 1246-1251 ◽  
Author(s):  
Dhruman Goradia ◽  
Harry T. Chugani ◽  
Rajkumar Munian Govindan ◽  
Michael Behen ◽  
Csaba Juhász ◽  
...  
Keyword(s):  
Intractable Epilepsy ◽  
Arcuate Fasciculus ◽  
The Right

scholarly journals Tractography Alterations in the Arcuate and Uncinate Fasciculi in Post-Stroke Aphasia

2021 ◽  
Vol 11 (1) ◽  
pp. 53
Author(s):  
Sara Kierońska ◽  
Milena Świtońska ◽  
Grzegorz Meder ◽  
Magdalena Piotrowska ◽  
Paweł Sokal
Keyword(s):  
White Matter ◽  
Brain Connectivity ◽  
Three Dimensional ◽  
Cerebral White Matter ◽  
Neural Pathways ◽  
Uncinate Fasciculus ◽  
Arcuate Fasciculus ◽  
Fiber Tractography ◽  
Post Stroke

Fiber tractography based on diffuse tensor imaging (DTI) can reveal three-dimensional white matter connectivity of the human brain. Tractography is a non-invasive method of visualizing cerebral white matter structures in vivo, including neural pathways surrounding the ischemic area. DTI may be useful for elucidating alterations in brain connectivity resulting from neuroplasticity after stroke. We present a case of a male patient who developed significant mixed aphasia following ischemic stroke. The patient had been treated by mechanical thrombectomy followed by an early rehabilitation, in conjunction with transcranial direct current stimulation (tDCS). DTI was used to examine the arcuate fasciculus and uncinate fasciculus upon admission and again at three months post-stroke. Results showed an improvement in the patient’s symptoms of aphasia, which was associated with changes in the volume and numbers of tracts in the uncinate fasciculus and the arcuate fasciculus.

scholarly journals Preoperative transcranial magnetic stimulation for picture naming is reliable in mapping segments of the arcuate fasciculus

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Davide Giampiccolo ◽  
Henrietta Howells ◽  
Ina Bährend ◽  
Heike Schneider ◽  
Giovanni Raffa ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Speech Production ◽  
Picture Naming ◽  
Magnetic Stimulation ◽  
Parietal Lobe ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Diffusion Imaging ◽  
Arcuate Fasciculus ◽  
Preoperative Mapping ◽  
Production Errors

Abstract In preoperative planning for neurosurgery, both anatomical (diffusion imaging tractography) and functional tools (MR-navigated transcranial magnetic stimulation) are increasingly used to identify and preserve eloquent language structures specific to individuals. Using these tools in healthy adults shows that speech production errors occur mainly in perisylvian cortical sites that correspond to subject-specific terminations of the major language pathway, the arcuate fasciculus. It is not clear whether this correspondence remains in oncological patients with altered tissue. We studied a heterogeneous cohort of 30 patients (fourteen male, mean age 44), undergoing a first or second surgery for a left hemisphere brain tumour in a language-eloquent region, to test whether speech production errors induced by preoperative transcranial magnetic stimulation had consistent anatomical correspondence to the arcuate fasciculus. We used navigated repetitive transcranial magnetic stimulation during picture naming and recorded different perisylvian sites where transient interference to speech production occurred. Spherical deconvolution diffusion imaging tractography was performed to map the direct fronto-temporal and indirect (fronto-parietal and parieto-temporal) segments of the arcuate fasciculus in each patient. Speech production errors were reported in all patients when stimulating the frontal lobe, and in over 90% of patients in the parietal lobe. Errors were less frequent in the temporal lobe (54%). In all patients, at least one error site corresponded to a termination of the arcuate fasciculus, particularly in the frontal and parietal lobes, despite distorted anatomy due to a lesion and/or previous resection. Our results indicate that there is strong correspondence between terminations of the arcuate fasciculus and speech errors. This indicates that white matter anatomy may be a robust marker for identifying functionally eloquent cortex, particularly in the frontal and parietal lobe. This knowledge may improve targets for preoperative mapping of language in the neurosurgical setting.

scholarly journals A three-time point longitudinal investigation of the arcuate fasciculus throughout reading acquisition in children developing dyslexia

NeuroImage ◽  
2021 ◽  
pp. 118087
Author(s):  
Stijn Van Der Auwera ◽  
Maaike Vandermosten ◽  
Jan Wouters ◽  
Pol Ghesquière ◽  
Jolijn Vanderauwera
Keyword(s):  
Reading Acquisition ◽  
Arcuate Fasciculus ◽  
Longitudinal Investigation ◽  
Time Point

scholarly journals Arcuate fasciculus architecture is associated with individual differences in pre-attentive detection of unpredicted music changes

NeuroImage ◽  
2021 ◽  
Vol 229 ◽  
pp. 117759
Author(s):  
Lucía Vaquero ◽  
Neus Ramos-Escobar ◽  
David Cucurell ◽  
Clément François ◽  
Vesa Putkinen ◽  
...  
Keyword(s):  
Individual Differences ◽  
Arcuate Fasciculus

Conduction Aphasia and the Arcuate Fasciculus: A Reexamination of the Wernicke–Geschwind Model

1999 ◽  
Vol 70 (1) ◽  
pp. 1-12 ◽  
Author(s):  
J.M. Anderson ◽  
R. Gilmore ◽  
S. Roper ◽  
B. Crosson ◽  
R.M. Bauer ◽  
...  
Keyword(s):  
Arcuate Fasciculus ◽  
Conduction Aphasia

scholarly journals Microstructural alterations of the arcuate fasciculus in schizophrenia patients with frequent auditory verbal hallucinations

2011 ◽  
Vol 130 (1-3) ◽  
pp. 68-77 ◽  
Author(s):  
A.D. de Weijer ◽  
R.C.W. Mandl ◽  
K.M.J. Diederen ◽  
S.F.W. Neggers ◽  
R.S. Kahn ◽  
...  
Keyword(s):  
Arcuate Fasciculus ◽  
Auditory Verbal Hallucinations ◽  
Microstructural Alterations

scholarly journals No Evidence for Systematic White Matter Correlates of Dyslexia and Dyscalculia

2018 ◽  
Author(s):  
David Moreau ◽  
Anna J. Wilson ◽  
Nicole S. McKay ◽  
Kasey Nihill ◽  
Karen E. Waldie
Keyword(s):  
Learning Disabilities ◽  
White Matter ◽  
Diffusion Tensor ◽  
Null Model ◽  
White Matter Integrity ◽  
Current View ◽  
Arcuate Fasciculus ◽  
Bayesian Hypothesis Testing ◽  
Structural Differences ◽  
And Mathematics

AbstractLearning disabilities such as dyslexia, dyscalculia and their comorbid manifestation are prevalent, affecting as much as fifteen percent of the population. Structural neuroimaging studies have indicated that these disorders can be related to differences in white matter integrity, although findings remain disparate. In this study, we used a unique design composed of individuals with dyslexia, dyscalculia, both disorders and controls, to systematically explore differences in fractional anisotropy across groups using diffusion tensor imaging. Specifically, we focused on the corona radiata and the arcuate fasciculus, two tracts associated with reading and mathematics in a number of previous studies. Using Bayesian hypothesis testing, we show that the present data favor the null model of no differences between groups for these particular tracts—a finding that seems to go against the current view but might be representative of the disparities within this field of research. Together, these findings suggest that structural differences associated with dyslexia and dyscalculia might not be as reliable as previously thought, with potential ramifications in terms of remediation.

scholarly journals MÓZGOWE PODŁOŻE ROZWOJU MOWY W AUTYZMIE

2021 ◽  
pp. 39-51
Author(s):  
Krystyna Rymarczyk
Keyword(s):  
Early Stage ◽  
Autism Spectrum ◽  
Speech Development ◽  
The Other ◽  
Arcuate Fasciculus ◽  
Foetal Life ◽  
Behavioural Research ◽  
Speech Development Disorders ◽  
Structure And Activity ◽  
Atypical Brain Development

Although in a majority of cases, autistic children face difficulties communicating verbally, the valid diagnostic classifi cations do not identify them as the main symptoms of the disorder. The adoption of such a position has been supported by results of (mainly behavioural) research, which imply that language and speech development in the autism spectrum disorder (ASD) is extremely variable and individually diversifi ed and the observed delay of its development is not unique to autism. On the other hand, the research conducted by means of neuroimaging methods shows that an atypical structure and activity of Broca’s and Wernicke’s areas, which are important for language processes, exist in the ASD. A weak structural and functional connectivity in the arcuate fasciculus, which connects these structures, has also been discovered. It is assumed that the changes arise from neurodevelopmental irregularities occurring at an early stage of foetal life and their causes are probably genetic. This study characterises speech development disorders and atypical brain development in autism referring to results of both behavioural and neuroimaging research.

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