Brain Representation of Hemifield Stimulation in Poststroke Visual Field Defects
نویسندگان
چکیده
منابع مشابه
Brain representation of hemifield stimulation in poststroke visual field defects.
BACKGROUND AND PURPOSE Plasticity in extended, parallel, or reciprocal operating networks is well recognized. Changes in neuronal activity after lesions to distinct localized structures, such as the primary visual cortex, are less well characterized. We investigated the cortical reorganization in patients with poststroke visual field defects using blood oxygen level-dependent functional MRI. ...
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AIMS/BACKGROUND An objective method for detecting hemifield and quadrantic visual field defects has been developed using steady state visual evoked cortical potentials (VECPs), an adaptive noise canceller (ANC), and Hotelling's t2 statistic. The purpose of this study was to determine the sensitivity and specificity of the technique. METHODS Nine subjects (mean age 44 years) were investigated ...
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ژورنال
عنوان ژورنال: Stroke
سال: 2002
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.0000013685.76973.67