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Mapping the selective brain
11-21-2007 · EurekAlert!Researchers have added a new piece to the puzzle of how the brain selectively amplifies those distinctions that matter most from the continuous cascade of sights, sounds, and other sensory input. Whether recognizing a glowering face among smiling ones or the unmistakable sound of a spouse calling one's name, such "categorical perception" is central to sensory function.
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Keywords: mapping, selective, brain
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- By jove, we've got it: EEG correlates of insightful problem solving
01-22-2008 · EurekAlert!
In a study published in PLoS ONE, researchers at Goldsmiths College, London, investigated brain rhythms and their dynamics while human volunteers solved verbal problems. Often, the participants reached a state of mental block and could not progress further: excessive amount of gamma brain rhythm (the same rhythm gets enhanced with selective attention) might cause this mental road block. It clearly indicates that focusing or attending too much on a topic might have a detrimental effect.
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- Innovative 3D-imaging technique captures brain damage linked to Alzheimer's disease
10-11-2007 · EurekAlert!
Using an advanced three-dimensional mapping technique developed by UCLA researchers, the team analyzed magnetic resonance imaging data from 24 patients with amnestic mild cognitive impairment and 25 others with mild Alzheimer's disease. The research team found that patients with mild Alzheimer's had 10 to 20 percent more atrophy in most cortical areas than did MCI patients.
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- Child-proof: Brain Mapping Safer For Children Than Previously Thought, Study Shows
10-06-2006 · ScienceDaily
Dispelling a stubborn myth, researchers at Johns Hopkins have shown that children with strokes, brain tumors and other cerebrovascular diseases can safely undergo a potentially life-saving brain-mapping test that many doctors have long shunned over concerns for side effects. Analysis of 241 cerebral angiograms performed on 205 children at the Johns Hopkins Children's Center between 1999 and 2006 showed that not a single patient suffered complications during or immediately following the procedure.
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- Novel 3-D cell culture model shows selective tumor uptake of nanoparticles
08-23-2007 · EurekAlert!
A novel cell culture model consisting of an aggregate of brain tumor cells growing on normal thin slices of brain tissue has been developed to investigate tumor properties and therapy. The tumor cells showed a similar invasion pattern to that seen when growing in patients. When nanoparticles made from a new type of polymer were added to the co-culture, the nanoparticles were taken up more by the tumor cells than the normal brain cells.
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- Algorithm for mapping mild cognitive impairment
10-29-2007 · EurekAlert!
Despite intensive use of the term "mild cognitive impairment" to describe an intermediate stage of cognitive decline between normal and pathological brain ageing, no formally agreed process of characterizing this condition exists, say Fiona Matthews (MRC Biostatistics Unit, Cambridge, UK) and colleagues.
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10-15-2006 · EurekAlert!
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01-02-2008 · EurekAlert!
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10-15-2006 · Brookhaven National Laboratory
People addicted to cocaine have an impaired ability to perceive rewards and exercise control due to disruptions in the brain's reward and control circuits, according to a series of brain-mapping studies and neuropsychological tests conducted at the U.S. Department of Energy's Brookhaven National Laboratory.
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08-31-2007 · EurekAlert!
A nanoparticle drug delivery system designed for brain tumour therapy has shown promising tumour cell selectivity in a novel cell culture model devised by scientists at The University of Nottingham. The project, conducted jointly by the Schools of Pharmacy, Biomedical Sciences and Human Development, will be featured in the September issue of the Experimental Biology and Medicine.
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