Spatial Synchronization of Brain Bioelectric Potentials Differs in Boys and Girls Aged 12–13 Years Reading Narrative Texts


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The contribution of each cortical zone to the organization of spatial synchronization of brain bioelectric potential s (SSBP) was estimated using cross-correlation matrices of 20-channell EEG during reading in boys and girls aged 12–13 years. Differences in the topical distribution of the SSBP levels in young boys and girls were revealed both in the resting state and during reading. In boys, the SSBP level in the left temporal lobe was lower than that in girls, and in the right parietal lobe it was higher than that in girls in all the states studied. A decrease of SSBP in central cortex zones was revealed, indicating the activation of motor cortical areas in all subjects during reading. Enhancement of SSBP in the parietal regions of the left hemisphere and the occipital zones of both hemispheres is observed in boys during reading, while in girls SSBP is increased bilaterally in the frontotemporal areas with the involvement of the left frontal lobe. Moreover, during reading intrahemispheric correlations between EEGs of the central and temporoparietal regions with emphasis on the right hemisphere were more pronounced in boys, while both intra- and interhemispheric correlations of the left temporal regions were pronounced in girls.

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E. Galperina

Sechenov Institute of Evolutionary Physiology and Biochemistry; St. Petersburg State Pediatric Medical University

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Email: galperina-e@yandex.ru
俄罗斯联邦, St. Petersburg; St. Petersburg

O. Kruchinina

Sechenov Institute of Evolutionary Physiology and Biochemistry; St. Petersburg State Pediatric Medical University

Email: galperina-e@yandex.ru
俄罗斯联邦, St. Petersburg; St. Petersburg

V. Rozhkov

Sechenov Institute of Evolutionary Physiology and Biochemistry

Email: galperina-e@yandex.ru
俄罗斯联邦, St. Petersburg

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