E. N. Dudnik

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The individual differences in the autonomic support of intellectual activity, including simple and complex sensorimotor reactions, memorization and reproduction (on the screen of the monitor) of visual information, were studied. The rate of performing intellectual computer-aided tests is a relatively steady individual characteristic revealed in different(More)
The basic somnological methodology, which is extensively used in the present time, focuses only on clinical practice. However, this approach is not appropriate for monitoring of physiological functions during natural sleep under home conditions. Our work was designed to develop a new information-and-equipment device for the reliable study of human(More)
Changes in the power and coherence of α-activity and heart rate variability (HRV) were studied in students with different performance levels in logical tasks. In those students who reached high scores in the cognitive tests, we observed higher lability of α-activity and HRV; the values and their ratios varied among the stages of intellectual activity. In(More)
We studied spatial organization of EEG alpha range potentials in volunteers with different results of tasks requiring logical thinking. The examinees with higher cognitive test performance have more labile coherent associations of EEG alpha range potentials, which manifested in changes in the level and structure of these associations at different stages of(More)
Changes in the power and coherence of α activity and heart rate variability (HRV) were studied in students with different performance levels in logical tasks. The students achieving high results in cognitive tests exhibited higher liability of α activity and HRV; the values and their ratios varied among the stages of intellectual activity. In these(More)
Heart rhythm variability characteristics were studied in volunteers with different stability of the results upon switching from one type of intellectual activity to another. Individuals with stable results differed from those with worse accuracy of information reproduction by high initial CV, total power of heart rhythm variability and power of VLF, LF, and(More)
The individual differences of autonomic support of intellectual activity (simple and complex sensorimotor reaction, storing and reproduction to the screen of the monitor of the visual information) were studied. Intellectual computer tests passing speed is a relatively steady individual characteristic, revealed in different kinds of activity. Students who(More)
The dynamics of microvascular circulation and tissue oxygenation in response to the hypoxic test and the subsequent hyperoxia have been studied. The microcirculatory and tissue oxygenation parameters (laser Doppler flowmetry and optical tissue oximetry) were recorded in 30 apparently healthy young men during the hypoxic test (HT): breathing a gas mixture(More)
We compared cytokine profi le of rat serum and brain structures after immune status modulation by LPS (30 μg/kg intraperitoneally). The content of infl ammatory (IL-1α, IL-1β, IL-2, IL-6, IFN-γ, and TNF-α) and anti-infl ammatory (IL-4 and IL-10) cytokines in biological samples of animals was measured on days 1 and 7 after antigenic stimulation. LPS(More)
A comprehensive comparative analysis of hemodynamics, microcirculation (the method of laser Doppler flowmetry with an occlusion test and the optical tissue oxymetry), blood circulation neurohumoral regulation (analysis of heart rate variability, HRV) in apparently healthy young subjects with different levels of subjectively experienced emotional stress has(More)