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  • Title: [Lateralization of visuo-spatial function during masking in healthy subjects and in patients with chronic alcoholism].
    Author: Genkina OA, Tsagareli MG, Dorman U.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1989; 39(3):431-9. PubMed ID: 2800690.
    Abstract:
    In healthy subjects and patients with chronic alcoholism, the ability to construct in mind geometric figures in conditions of masking was studied by means of recording the number of correct decisions, the reaction time and evoked cortical electrical activity. It has been found that solution of visual-spatial task of mentally constructing geometric figures is accomplished better if a figure-standard can be formed from the presented fragments. During solution of the visual-spatial task in norm the reaction time is shorter if the information comes "directly" to the right hemisphere. Such interhemispheric differences are not observed at chronic alcoholic intoxication. In patients with chronic alcoholism the late components of EPs N200 and P300 developed with a longer latency and lesser amplitude than in healthy subjects. The greatest depression of cortical activity is observed in the right hemisphere.
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