Z F Zvereva

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We studied clinical parameters and characteristics of the nonspecific brain activity, reflecting interhemispheric interactions, in patients with discirculatory encephalopathy (DEP) who had arterial hypertension. Forty-six patients with DEP (25 - with DEP, II stage, 21 - with DEP, III stage) without epileptic changes on EEG were examined. The control group(More)
  • Z F Zvereva
  • 2003
Comparison of power asymmetry (PA) has shown that low PA values occurred in the posterior cortical parts in adult examinees free of focal brain pathology, in anterior and posterior cortical parts in children and in patients with affected left hemisphere. In view of immaturity of the brain and unbalanced subcortical-cortical relationships in children there(More)
  • Z F Zvereva
  • 2003
The fluctuations of functional brain condition level are evaluated by interhemispheric asymmetry of bioelectric activity power that is a consequence of both hemispheres interplay and involvement of nonspecific brain system in this process. Using neurological examination and electroencephalography, functional CNS condition analysis in patients with chronic(More)
The gears of the conjugate activity of hemispheres in the presence of damage in one were studied before and after removal of a tumor by using an interhemispheric asymmetry index. On left hemispheric exposure, the index decreased in the anterior brain regions having mainly morphofunctional connections with the activating structures of the stem. The posterior(More)
The study of interhemispheric bioelectrical asymmetry (IBA) of the brain as a result of pair activity of the hemispheres has shown that in normal subjects IBA was greater in the frontal lobes than in the occipital ones. In patients with injured right hemisphere the asymmetry increased in the occipital lobes. In patients with injured left hemisphere the(More)
  • Z F Zvereva
  • 1995
The interhemispheric organization of brain electrical processes was shown to depend on the lateralization of an injury. The EEG asymmetry was significant with a tumor being in the right hemisphere as compared with that of healthy subjects. When a tumor was in the left hemisphere, the asymmetry was more considerable than that in healthy persons. An analysis(More)
The studies revealed that the level of interhemispheric bioelectric asymmetry, which reflects the functional relations between the hemispheres, is one of the major indices of the functional interaction of the two hemispheres. There were changes in interhemispheric asymmetry in relation to the tumor damage to the right or left hemisphere. The structural(More)
The authors studied the functional condition of the brain during the restorative period after operative damage to one of the hemispheres. In the early stages of the restorative period in neurosurgical patients with a slow rhythm afferent stimuli (rhythmic light stimulation) induced the appearance of a marked alpha-rhythm, which is evidence of restoration of(More)