Yu. A. Voronkova

Publications (2)0 Total impact

• Article: Subcortical and limbic structures and P300 in schizophrenia

  Yu. A. Voronkova, I. S. Lebedeva, L. V. Gubsky, V. A. Orlova, N. I. Voscresenskaya, D. A. Kupriyanov, N. V. Anisimov, T. A. Solokhina
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  ABSTRACT: The correlations between the volumes of the caudate nucleus, putamen, amygdala, and hippocampus, on the one hand, and the P300 amplitude and latency of auditory evoked potentials, on the other hand, were studied in 14 schizophrenics. Significant positive correlations were found between the parameters of the late cognitive potential P300 (predominantly in the left hemisphere) and the caudate nucleus and putamen volumes, as well as between the right amygdala volume and the P300 amplitude in the left temporal region. The results testify again to the role of changes in the left hemisphere in the pathogenesis of schizophrenia and pose the question of the structural and functional features of left frontosubcortical communications.
  Human Physiology 04/2012; 31(2):137-141.
• Article: Relationship between neurophysiological indices of cognitive processes and MRI characteristics of some brain structures in healthy subjects and patients with schizophrenia

  I. S. Lebedeva, Yu. A. Voronkova, L. V. Gubskii, D. A. Kupriyanov
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  ABSTRACT: The relationships between the parameters of waves of auditory event-related potentials (ERPs) in the oddball paradigm and the volumes of the hippocampus, amygdala, and caudate nuclei were analyzed in healthy subjects and patients with schizophrenia. The data obtained suggest that faster mental processes and stronger activation and/or synchronization of the activity of ERP wave generators in healthy subjects correspond to smaller volumes of the structures studied. The structure of the relationships in patients with schizophrenia differed from the normal one; significant correlations were observed with the volume of the caudate nuclei, and more pronounced “normalization” of neurophysiological characteristics was associated with large volumes of these structures.
  Human Physiology 04/2012; 34(1):39-44.