Sentences with phrase «white matter fiber»

However, DTI has some important limitations: it can't show the complex course of white matter fiber tracts as they cross each other, and it can't accurately show the starting point and ending points of white matter tracts.

BURGEL, U., AMUNTS, K., HOEMKE, L., MOHLBERG, H., GILSBACH, J. M. & ZILLES, K. (2006) White matter fiber tracts of the human brain: three - dimensional mapping at microscopic resolution, topography and intersubject variability.

These rich data will also allow us to quantify genetic (Chiang et al., 2009) and behavioral variation of white matter fiber pathways and functional correlations for analysis by the entire community, and help define an optimized methodology for collection of a definitive connectome dataset using DSI (V. J. Wedeen, 2005).

Differences in white matter fiber tract development present from 6 to 24 months in infants with autism.

The researchers found cardiorespiratory fitness was positively linked to the structural integrity of white matter fiber bundles in the brain in the older adults, while no such association was observed in younger adults.

Some people's electrodes were in the entorhinal cortex's gray matter, and some were in its white matter fibers, which extend to the hippocampus, an area known for its role in memory.

In healthy white matter, fluid moves in a directional manner, suggesting that the white matter fibers are intact.

White matter fibers connect the different areas of the brain and abnormalities in white matter may be tied to the development of dementia and other cognitive disorders.

Not exact matches

The center of the cord is gray matter — essentially an extension of the brain, like a tail — that is sheathed in fibrous white matter, with long, thin nerve fibers called axons shooting out at intervals to wire every part of the body.

A study shows, for the first time, how these functional impairments arise: Social isolation during early life prevents the cells that make up the brain's white matter from maturing and producing the right amount of myelin, the fatty «insulation» on nerve fibers that helps them transmit long - distance messages within the brain.

Furthermore, brain imaging data for these very elderly animals shows a slight loss of grey matter (neuronal cell bodies), an effect that the researchers have not yet explained, as well as significantly slowed atrophy of white matter (the neuronal fibers connecting different areas of the brain).

The brain's white matter is composed of millions of nerve fibers called axons that act like communication cables connecting various regions of the brain.

WHITE - MATTER TRACTS Left: 27 - Year - old Neural highways made of nerve fibers and glial cells transmit signals efficiently.

Tracts of white matter, the fibers linking brain regions, seemed to have declined in the vets.

He published his find of the VOF, a bundle of white - matter fibers near the back of the brain, in 2013 and helped show its involvement in reading.

The male brain, by contrast, is filled with more white matter, which consists of longer neuron fibers coated with a fatty myelin sheath that communicate with more distant regions of the brain.

For the new study, researchers from the University of Pittsburgh Medical Center (UPMC) in Pittsburgh used diffusion tensor imaging (DTI), an MRI technique that measures the integrity of white matter — the brain's signal - transmitting nerve fibers — to see if injuries to the nerves may be the root cause of these post-traumatic depression and anxiety symptoms.

DTI «sees» the movement of water molecules within and along axons, the nerve fibers that constitute the brain's white matter.

«In a separate study, we examined the white matter structure of the fornix, a group of nerve fibers at the center of the brain that is important for memory,» she said.

Software measures the neuron - rich gray matter in the brain's outer cortex, the underlying fibers of the white matter, and the clear fluid that fills the cavities.

The study published in the Journal of Alzheimer's Disease focused on a type of brain tissue called white matter, which is composed of millions of bundles of nerve fibers used by neurons to communicate across the brain.

When compared to the control group, type 2 patients showed decreased integrity in the white matter of two different areas in the brain — the cingulum bundle, which is a fiber tract that connects regions in the default - mode network, and the uncinate fasciculus, which connects regions important for executive function and memory.

The white matter is a network of fibers that enables regions of the brain to communicate with each other.

Generally speaking, gray matter facilitates most of the brain's signaling and is central to sensory perceptions, while white matter is largely nerve fiber bundles that enable communication between brain regions.

The gray matter in these regions and the white matter «highways,» or fiber bundles connecting the regions, work together to form the reading network.

A year later, a study by McCandliss and Sumit Niogi that focused on brain structure found a connection between reading skills and white matter, the bundles of electricity - conducting tissues that link parts of the brain together, like the fiber - optic cable network to the Internet.

McCandliss and Niogi showed that the stronger the white matter tract in a particular mid-left area of the brain — the thicker its electrical insulation and the more well organized its fibers — the higher the reading scores of children they tested.

The white matter of the spinal cord, which contains the nerve fibers responsible for transmitting movement commands from the brain to the limbs and sensory information from the limbs to the brain, degenerates.

This white matter contains fibers that transmit movement commands from the brain to the limbs and sensory information from the limbs to the brain.