Abstract
A group of healthy adults (n = 35) has been instructed to recognize the emotionally negative face when exposed to the conditioning visual Go/NoGo stimuli in the middle of a 16-s interval that elapsed between the set (facial expression) and triggering stimuli. Local changes in the low-frequency a-oscillations in response to the conditioning stimuli (desynchronization after a positive Go stimulus and synchronization after an inhibitory NoGo stimulus) take place in the postfrontal and anterior temporal lobes of the left hemisphere, i.e., in the cortical areas directly involved in speech processes. In subjects with a flexible set towards recognition, synchronization of α-rhythm was observed after the inhibitory NoGo stimulus. This was not the case in the subjects with a stable set. Thus, new evidence is obtained to confirm that inducible synchronization of α-oscillations testifies to an enhancement of the descending 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, 2015, published in Fiziologiya Cheloveka, 2015, Vol. 41, No. 5, pp. 16–27.
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Kostandov, E.A., Cheremushkin, E.A., Yakovenko, I.A. et al. Relationships between the flexibility of cognitive performance and the α-rhythm response to conditioning stimuli. Hum Physiol 41, 468–477 (2015). https://doi.org/10.1134/S0362119715050060
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DOI: https://doi.org/10.1134/S0362119715050060