ПОЗИТИВНЫЕ КОМПОНЕНТЫ ВЫЗВАННОГО ОТВЕТА НА ЗРИТЕЛЬНЫЕ СТИМУЛЫ В САККАДИЧЕСКОЙ ПАРАДИГМЕ “GО/NoGО” У ЧЕЛОВЕКАстатья
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Дата последнего поиска статьи во внешних источниках: 15 августа 2019 г.
Аннотация:Abstract—To analyze the mechanisms of voluntary control of oculomotor behavior, including the inhibition
processes, we studied the parameters and topography of the positive components of the event-related potential
(ERP) to visual stimuli of various signal values in the saccadic “Go–No-Go” paradigm in 19 healthy
right-handed subjects. The data we obtained suggest a different functional significance of the positive ERP
components depending on the individual magnitude of the latent period (LP) of the saccadic response to the
starting stimuli (Go). In the group of fast subjects (LP = 193 ± 10 ms), the Go-P100, Go-P200, and Go-P300
components may reflect the processes of decision-making, response initiation, and behavior monitoring,
respectively; in slow subjects (LP = 277 ± 11 ms) they may reflect the processes of stimulus evaluation, decision-
making, and response initiation. Regardless of the group of subjects, the No-Go-P100 component
reflects the stage of evaluation of the inhibitory stimulus; the No-Go-P200 component reflects the stage of
decision-making and saccade inhibition and the No-Go-P300 component reflects the stage of monitoring
and analyzing the results of behavior.
Keywords: saccade, latency period, ERP components, inhibition, attention, decision-making, response initiation