What does the Uncinate fasciculus do?
What does the Uncinate fasciculus do?
The left uncinate fasciculus has frequently been associated with language function because it connects regions of the brain that have putative functions in language: the anterior temporal lobes and portions of the frontal lobes, both of which have been proposed to encode, store and retrieve semantic knowledge (Grossman …
Where is the Uncinate fasciculus located?
temporal lobe
The uncinate fasciculus is a white matter tract in the human brain that connects parts of the limbic system such as the hippocampus and amygdala in the temporal lobe with frontal ones such as the orbitofrontal cortex.
What is fractional anisotropy in brain?
BACKGROUND AND PURPOSE: Fractional anisotropy (FA) is a useful measure of connectivity in the brain that can be derived from the diffusion tensor imaging (DTI) dataset. Relationships between a range of cognitive measures and FA were explored using regional and voxel-based analysis.
What is the inferior longitudinal fasciculus?
The inferior longitudinal fasciculus (ILF) is a white matter tract that connects the occipital and the temporal lobes. ILF abnormalities have been associated with deficits in visual processing and language comprehension in dementia patients, thus suggesting that its integrity is important for semantic processing.
What is the Uncinate?
Introduction. The uncinate process is a hook like extension from the lower part of the head of the pancreas, and it extends superiorly and posteriorly behind the superior mesenteric vein (SMV), and ends either to the right side or extending behind the superior mesenteric artery (SMA) 1.
What are FA values?
Fractional anisotropy (FA) is a scalar value between zero and one that describes the degree of anisotropy of a diffusion process. FA is a measure often used in diffusion imaging where it is thought to reflect fiber density, axonal diameter, and myelination in white matter.
Is higher fractional anisotropy better?
All analysis methods consistently showed that fractional anisotropy (FA; a measure of microstructural integrity) was higher in the right superior longitudinal fasciculus (SLF) in WS compared with both control groups.
What is the superior longitudinal fasciculus?
The superior longitudinal fasciculus (SLF) is a large bundle of association fibers in the white matter of each cerebral hemisphere connecting the parietal, occipital and temporal lobes with ipsilateral frontal cortices (Schmahmann et al. 2008).
What is the Uncinate margin?
In the posterior-inferior aspect of the uncinate process, the pancreatic tissue is dissected from the retroperitoneal soft tissues, just right lateral along the superior mesenteric artery. This constitutes the uncinate (retroperitoneal) margin (see below).
