2023 Fifth International Conference Neurotechnologies and Neurointerfaces (CNN) 18-20 Sept. 2023

IEEE, 2023.

Alshanskaia E., Martynova O.

 Cognitive and emotional load in the course of increasing the complexity of tasks leads to the activation of various parts of the autonomic nervous system (ANS) and can be accompanied by an increase in the efficiency of problem solving. An increase in cognitive load under the condition of high motivation is a stress factor and is expressed in a different reaction of the sympathetic and parasympathetic links in response to the load. This study explored the ANS reactions by measuring the pupil size of 61 healthy sub-clinical volunteers in response to the gradually increasing complexity of tasks. The experiment included 3 blocks of a combined visual search and 1-back task with six levels of difficulty. K-mean clustering method was used for the analysis. An increase in the complexity of the task from the first to the sixth level led to different dynamics of the pupil size in the three clustered groups. In one group, an intense high switchability and an active reaction with a large amplitude of changes were visible, in the second group the dynamics of changes was minimal, and a third intermediate group was also identified. Our results highlight individual differences in the reaction of the sympathetic and parasympathetic branches of ANS under cognitive workload depending on biometric and psychometric parameters. 

Chapters

The cost of emotion regulation: A study of electomyographic and cardiac markers

Vladimir Kosonogov, Ioannis Ntoumanis, Hajiyeva G. et al., , in: 2023 Fifth International Conference Neurotechnologies and Neurointerfaces (CNN) 18-20 Sept. 2023.: IEEE, 2023. P. 35–38.

Our study aimed to examine the peripheral markers of emotion regulation while participants viewed oneminute negative videos, comparing them to the natural viewing of neutral and negative videos. We analyzed facial electromyography and cardiac activity during the suppression and reappraisal of emotions in response to negative videos, as well as during the simple viewing of ...

Added: October 21, 2023

Improvement in Psychological Well-Being and Changes in Brain and Autonomic Nervous System Activity in Novices After Taoist Meditation Training

Rusinova A., Volodina M., Ossadtchi A., , in: 2023 Fifth International Conference Neurotechnologies and Neurointerfaces (CNN) 18-20 Sept. 2023.: IEEE, 2023. P. 64–67.

There is a growing body of scientific evidence that supports positive effects of mindfulness practices on physical and mental health. To further extend the knowledge about the effects of meditation that occur during and after meditation practice, this study examined changes in physiological and brain activity parameters following 8 weeks of meditation training (2 sessions ...

Added: November 1, 2023

Optimal Decision-Making Duration

Aksiotis V., Voskoboynikov A., Ossadtchi A. et al., , in: 2023 Fifth International Conference Neurotechnologies and Neurointerfaces (CNN) 18-20 Sept. 2023.: IEEE, 2023. P. 4–7.

Decision-making is a complex and prolonged process. In this study, we present an adaptive algorithm designed to explicitly estimate the duration of perceptual decision-making in the Random Dot Motion Task. The algorithm effectively disentangles the duration of the preparation period for the subject's decision on the direction of movement of the dots from the period ...

Added: November 9, 2023

Keywords: machine learning, clustering, brain, cognitive neuroscience, k-mean clustering, Pupil size, computational cognitive neuroscience, anxiety and cognitive biases, cognitive neuroscience, brain, autonomic nervous system, stress, autonomic nervous system, pupil size, K-mean clustering