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According to researchers at the UC Davis Center for Mind and Brain and M.I.N.D. Institute, there is a disconnection between the center of the brain that allocates attention and the visual processing regions.
In the research, children with diagnosed ADHD and normal children were given a simple attention test while their brain waves were measured (especially the alpha rhythm). When part of the brain is emitting alpha rhythms, it shows that it is disengaged from the rest of the brain and not receiving or processing information optimally.
This is the first evidence from brain electrical patterns for a functional disconnection in cortical attention systems in ADHD.
The study appears in the online issue of the journal Biological Psychiatry.
More info: www.sciencedaily.com/releases/2010/01/100111155116.htm
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