Tag: "cortical" at biology news
Croatian skeletons reveal changing status of cancer in Europe across the centuries
...s bone was the only tissue remaining): two fibrous cortical
defects, an osteochondroma and an osteoma. All three conditions were benign, with little potential for malignant transformation. "The low frequency of neoplasms in the Croatian Skeletal Collection is characteristic for archaeological material", said...
Newly identified gene linked to brain development
... increasing numbers of genes that are required for cortical
development," he adds. "Although these genes cause mental retardation, by studying the biological function of their gene products we also gain insight into the normal development and function of the human brain." In addition to Walsh and Piao, st...
Migraine mouse provides insight into neurobiology of devastating headaches
...neurotransmitters, and increased susceptibility to cortical
spreading depression (CSD), the phenomenon that un...on. Our results suggest that in the migraine brain cortical
hyperexcitability results in an increased susceptibility for CSD and aura," explains study coauthor ...
New study seeks to establish mechanism between areas of the brain and continence
...rect stimulation of the motor cortex, the cerebral cortical
activity map related to voluntary contraction of this sphincter, could be quite different from the cortical
topography of its control determined by direct stimulation of the cerebral cortex. A New Study To...
UCSF finding advances insight into adult stem cells in human brain
..., that some factor is being secreted by the normal cortical
astrocytes that induce these adult neural stem cells to produce new neurons. The answers await. "From the laboratory to the operating room, from mice to humans." he reflects. "Many investigators and clinicians gravitate towards stem cells because ...
Monkey talk, human speech share left-brain processing
...ity of characterizing such neuronal responses in a cortical
region of the monkey that is not only a higher-order auditory processing area, but also one that could be a precursor for an acoustic language area in humans," note the researchers. "This study provides neuroscientists with new biological clues for ...
Genetic screening recommended to detect new neurodegenerative disorder in men over age 50
...ensities were found in the hippocampus and frontal cortical
regions, areas of the brain that control movement and are important in learning, memory and emotion. "The formation of inclusion bodies in the nuclei of nerve cells offers an important clue about the cause of the disorder, one that may ultimately ...
A big surprise: Young nerve cells can rewind their developmental clocks
...rs found that they could rewind the clock in young cortical
cells in mice by eliminating a gene called Foxg1. ...t it was possible to push back the birth date of a cortical
neuron. There is this central tenet governing the process of brain development, which says that late...
JCI table of contents, December 15 2003
...n bone structure, including reduced trabecular and cortical
bone thickness. These data demonstrate the key function of TRPV5 in active Ca2+ reabsorption and its essential role in Ca2+ homeostasis. TITLE: Renal Ca2+ wasting, hyperabsorption, and reduced bone thickness in mice lacking TRPV5 AUTHOR CONTAC...
New technique helps shed light on progression of dementia
...ts several weeks after surgery in order to look at cortical
tissues, where acetylcholine is released. In the cortex, the density of axons that released acetylcholine was strikingly reduced. "The occurrence of ministrokes and microvascular disorders are significant risk factors for dementia, including Alzheime...
Can heart failure impair thinking?
...icant gray matter loss in cerebellar, insular, and cortical
areas, which may contribute to aberrant autonomic,...ex-parahippocampal gyrus: An inferior temporallobe cortical
area bordering the hippocampus showed gray matter loss. Cingulate gyrus, dorsal midbrain, and thala...
Swimming can contribute to rebuilding bone strength
...as analyzed separately to capture the variation in cortical
and cancellous bone density. Mechanical properties of bone tissues were measured in three-point bending in a materials testing system. The span of the two support points was 20 mm, and the deformation rate was 1 mm/min. Load deformation curves were a...
Study sheds light on critical relay in visual circuit of the brain
...us to cortex connection and in mapping out further cortical
wiring patterns important for vision. The subplate... that they can become strong enough to talk to the cortical
neurons." Shatz, who is also co-chair of the Harvard Center for Neurodegeneration and Repair (hcnr....
Hebrew University researcher studies 'reorganization' of brain in blind people
...s study opens a window for better understanding of cortical
plasticity in brain systems, a crucial step in see...diseases. Once researchers know more about how the cortical
reorganization takes place -- and how to advance this process by proper training -- it may be possib...
Wake Forest researcher identifies syndrome as leading cause of death in premature infants
...iscovered a new type of brain malformation, called cortical
cleft malformation, which is associated with prema...would cause cell death and a hole to form called a cortical
cleft. This finding suggests an answer to the question, 'Why did this baby die?' to parents and phys...
Georgia Tech researchers use lab cultures to control robotic device
...rrays as a two-way interface to cultured mammalian cortical
networks, we have given these networks an artificial body with which to behave."...
Real-time imaging reveals the dynamic architecture of plant cells
...cientists have been trying to figure out how these cortical
arrays are created and become organized," remarked... watched individual polymers, it became clear that cortical
sites of initiation often did not hang onto the ends of the polymers but released them, after which ...
White noise delays auditory organization in brain
... effects of patterned early auditory experience on cortical
development. "Auditory experience is clearly an important factor in humans for learning language," he said. "We learn to speak and read through our sensitivities to speech sounds that are heard during early life." Thus, Chang and Merzenich designed e...
Study provides new insights into the functional neuroanatomy of motor imagery
...perties to more motor executive properties in many cortical
and subcortical areas. The most executive areas coincided with the motor areas that directly send output to M1 or the spinal cord or the areas associated with sensory feedback processing and somato-sensorimotor association. However, some of the movem...
How postnatal experience influences brain development and brain function
...be a deficit or decline in dorsolateral prefrontal cortical
synaptic connectivity combined with morphological abnormalities, suggesting abnormal plasticity at the level of individual synapses." Greenough's findings don't run counter to the long-held view of what occurs in schizophrenia. Rather they approach ...
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