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ТРАНСКРАНИАЛЬНАЯ ЭЛЕКТРОСТИМУЛЯЦИЯ ПОСТОЯННЫМ ТОКОМ МОДУЛИРУЕТ КОМПОНЕНТ НЕГАТИВНОСТИ РЕЗУЛЬТАТА ДЕЙСТВИЯ В МОНЕТАРНОЙ ИГРЕ
The present study aimed to investigate the neurophysiological effects of transcranial direct current
stimulation (tDCS) on a component of evoked potentials called feedback-related negativity (FRN).
The subjects completed the monetary incentive delay task, during which they tried to avoid monetary
losses of various sizes. We compared the amplitude of FRN in response to information about
monetary loss in the control group with the group receiving cathodic stimulation of the ventromedial
prefrontal cortex. Based on the data available in the literature, we hypothesized that cathodic
tDCS would suppress the amplitude of the FRN component. Contrary to our hypothesis, the value
of the component in the stimulation group was significantly higher than in the control group. These
results can serve as additional evidence for the amplifying effect of the cathodic tDCS, and lead to
the assumption that the neural networks involved in signal generation when processing a monetary
loss differ from those in a game that is not associated with a monetary reward