Cerebral blood flow and bioelectric activity were studied in 10 normal volunteers in order to assess cerebrovascular reactivity during different types of functional testing. The transcranial Doppler was used to measure linear blood velocity (LBV) in the middle cerebral artery (MCA) during maximal voluntary breath-holding (apnea), controlled verbal association test and tactile memory test. Simultaneous electroencephalography (EEG) registered the bioelectric activity of the brain cortex.
View Article and Find Full Text PDFClinical practice shows that right-hemisphere cerebral strokes are often accompanied by one speech disorder or another. The aim of the present work was to analyze published data addressing speech disorders in right-sided strokes. Questions of the lateralization of speech functions are discussed, with particular reference to the role of the right hemisphere in speech activity and the structure of speech pathology in right-hemisphere foci.
View Article and Find Full Text PDFThe clinical picture revealed that right-sided brain stroke is often accompanied by some speech disturbances. The present paper aims at the analysis of literature devoted to speech disturbances in right-sided brain stroke. The paper addresses issues on lateralization of speech functions, in particular the role of the right hemisphere in speech activity and structure of speech pathology in right hemispheric foci are specified.
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