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  • Когнитивный контроль: новые мозговые механизмы, выявленные с помощью частотно-временного анализа электроэнцефалограммы при выполнении экспериментальной задачи с высокой нагрузкой на внимание

Book chapter

Когнитивный контроль: новые мозговые механизмы, выявленные с помощью частотно-временного анализа электроэнцефалограммы при выполнении экспериментальной задачи с высокой нагрузкой на внимание

С. 393-397.
Cognitive control includes specific maintenance of sustained attention to a stimulus and non-specific regulation of a motor threshold. Failures in each system lead to different types of errors, associated with attentional lapses and uncertainty or dysfunction of the motor threshold. Subsequent adaptive adjustments can be implemented through two different mechanisms, depending on the type of error. Two experiments were conducted using the auditory condensation task, which is highly demanding for sustained attention. We analyzed EEG oscillations in theta, alpha and beta bands. The results indicate that adaptive adjustments after errors are implemented by the frontal-medial network of task monitoring, the parietal attentional network and the sensorimotor network. Moreover, we discovered that response times may serve as an efficiency marker of each network, which allows us to distinguish between two types of responses: fast responses with a high level of attention and low level of uncertainty, and slow responses with a low level of attention and high level of uncertainty. Jointly, the results of both experiments demonstrate that the condensation task in an auditory modality is a new prospective method for investigating the brain mechanisms of cognitive control.