Hemodynamic response and functional connectivity during solving cognitive tasks: fNIRS study
A.A. Badarin, S.A. Kurkin, V.V. Grubov,
Neuroscience and Cognitive Technology Laboratory, Innopolis University, Innopolis, Russian
Abstract
The paper presents an analysis of the dynamics of the functional connections of the cortical network of the brain between the signals of oxyhemoglobin, deoxyhemoglobin and total hemoglobin when performing a monotonous cognitive task for a long time. As a task, the subject was given the Sternberg test, which consists in memorizing the semantic meaning of the letters presented to the subject.
The functional connections of the cortical network of the brain in different frequency ranges have been determined. It was found that at the beginning of the experiment, the regions of the parietal cortex of the brain are characterized by a high correlation coefficient. Then there is a sequential destruction of connections in the parietal cortex and the formation of new connections between the parietal and frontal cortex of the brain.
Speaker
Badarin A.A.
Neuroscience and Cognitive Technology Laboratory, Innopolis University
Russia
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