arcuate fasciculus


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Related to arcuate fasciculus: conduction aphasia, uncinate fasciculus

su·pe·ri·or lon·gi·tu·di·nal fas·cic·u·lus

[TA]
long association fiber bundle lateral to the centrum ovale of the cerebral hemisphere, connecting the frontal, occipital, and temporal lobes; the fibers pass from the frontal lobe through the operculum to the posterior end of the lateral sulcus where many fibers radiate into the occipital lobe and others turn downward and forward around the putamen and pass to anterior portions of the temporal lobe.
Synonym(s): fasciculus longitudinalis superior [TA], arcuate fasciculus (1)
Farlex Partner Medical Dictionary © Farlex 2012

arcuate fasciculus

A myelinated axon tract lying under the cerebral cortex. It is a long association tract that interconnects the superior and middle gyri of the frontal lobe with the ipsilateral temporal lobe.
See also: fasciculus
Medical Dictionary, © 2009 Farlex and Partners
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References in periodicals archive ?
Dougherty, "Reading impairment in a patient with missing arcuate fasciculus," Neuropsychologia, vol.
= hemispheric dominance, M = male, L = left, R = right, AF = arcuate fasciculus, O = oligodendroglioma, GBM = glioblastoma, AO = anaplastic oligodendroglioma, EoR = extent of resection, and AED = antiepileptic drugs.
Differential Effects of Awake Glioma Surgery in "Critical" Language Areas on Cognition: 4 Case Studies
Rykhlevskaia et al., "Anatomical properties of the arcuate fasciculus predict phonological and reading skills in children," Journal of Cognitive Neuroscience, vol.
Schlaug, "Impairment of speech production predicted by lesion load of the left arcuate fasciculus," Stroke, vol.
Chugani, "Absence of arcuate fasciculus in children with global developmental delay of unknown etiology: a diffusion tensor imaging study," Journal of Pediatrics, vol.
Chugani, "Aberrant diffusion and geometric properties in the left arcuate fasciculus of developmentally delayed children: a diffusion tensor imaging study," American Journal of Neuroradiology, vol.
Failure to identify the left arcuate fasciculus at diffusion tractography is a specific marker of language dysfunction in pediatric patients with polymicrogyria
Data from DTI studies in tinnitus patients show decreased fractional anisotropy in frontal and parietal arcuate fasciculus [69], increased FA in the inferior frontooccipital fasciculus and superior longitudinal fasciculus, decreased FA in the superior longitudinal fasciculus of the left parietal lobe [89], "disconnectivity" in extra-auditory pathways involving pathways involving PFC, temporal lobe, thalamus, and limbic system [71] and increased right sided connectivity between anterior cingulate, frontal and parietal cortices [76].
Of particular interest are data on the arcuate fasciculus, this pathway is critically involved with human language.
A brain centred view of psychiatric comorbidity in tinnitus: from otology to hodology
The arcuate fasciculus was smaller in volume, and had a lower fibre count in the tone-deaf individuals.
Particularly, the superior branch of the arcuate fasciculus in the right hemisphere could not be detected in the tone-deaf individuals.
Tone-deaf people lack an important neural pathway
The arcuate fasciculus in auditory-verbal hallucinations: A meta-analysis of diffusion-tensor-imaging studies.
Increased Local Spontaneous Neural Activity in the Left Precuneus Specific to Auditory Verbal Hallucinations of Schizophrenia
Mesulam, "The arcuate fasciculus and the disconnection theme in language and aphasia: history and current state," Cortex, vol.
Mapping remote subcortical ramifications of injury after ischemic strokes

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