Abstract
In the middle of a 16-s pause between the target (facial image) and a triggering stimuli, conditioning Go/NoGo signals were presented to healthy adults (n = 35). The absence of significant changes in the plasticity of a set to an angry face upon introduction of an additional cognitive task is due to an increase in induced synchronization of the α rhythm in the pauses between target, conditioning, and triggering stimuli. This indicates an increase in the top-down inhibitory control, which suppresses the effects of irrelevant factors, and, thereby, facilitates processing relevant information. In the time interval between the NoGo and triggering stimuli, the induced synchronization of low-frequency and high-frequency α rhythm is recorded locally in the motor area of the left hemisphere only (C 3, FC 3). The theory on the inhibitory nature of this electrophysiological phenomenon is experimentally confirmed. The concepts of differentiating and delayed inhibition from the physiology of higher nervous activity are considered as part of the theory of top-down inhibitory control from the prefrontal cortex.
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Original Russian Text © E.A. Kostandov, E.A. Cheremushkin, I.A. Yakovenko, N.E. Petrenko, 2014, published in Fiziologiya Cheloveka, 2014, Vol. 40, No. 1, pp. 13–25.
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Kostandov, E.A., Cheremushkin, E.A., Yakovenko, I.A. et al. Changes in the α rhythm upon introduction of Go/NoGo stimuli in the context of an experiment with a set to an angry face. Hum Physiol 40, 8–19 (2014). https://doi.org/10.1134/S0362119714010083
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DOI: https://doi.org/10.1134/S0362119714010083