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Complexity-Based Decoding Of The Brain Reactions To Visual Stimuli With Different Frequencies

Author

Listed:
  • SRIRAM PARTHASARATHY

    (Centre for Computational Modelling, Chennai Institute of Technology, Chennai 600069, Tamil Nadu, India)

  • KARTHIKEYAN RAJAGOPAL

    (��Centre for Nonlinear Systems, Chennai Institute of Technology, Chennai 600069, Tamil Nadu, India)

  • ONDREJ KREJCAR

    (��Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, 50003 Hradec Kralove, Czechia§Institute of Technology and Business in Ceske Budejovice, Ceske Budejovice, Czechia¶Department of Biomedical Engineering and Measurement, Faculty of Mechanical Engineering, Technical University of Kosice, Slovakia)

  • ROBERT FRISCHER

    (�Institute of Technology and Business in Ceske Budejovice, Ceske Budejovice, Czechia)

  • HAMIDREZA NAMAZI

    (��Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, 50003 Hradec Kralove, Czechia∥School of Engineering, Monash University, Selangor, Malaysia)

Abstract

Analysis of the brain activity to external stimulation is an important area of research in biomedical engineering. In this paper, for the first time, we analyzed the brain reaction to visual stimuli with different frequencies using three complexity methods. For this purpose, we utilized fractal theory, sample entropy, and approximate entropy to study the variations of the complexity EEG signals while subjects received visual stimuli at 7, 9, 11, and 13 Hz. The results showed that, in general, by moving from 9 Hz to 13 Hz stimuli, the complexity of EEG signals increases, except in the case of 11 Hz stimulus. The statistical analysis also supported the results of the analysis. The conducted analysis in this research can be performed in the case of other types of external stimuli to study how the brain reacts in different conditions.

Suggested Citation

  • Sriram Parthasarathy & Karthikeyan Rajagopal & Ondrej Krejcar & Robert Frischer & Hamidreza Namazi, 2023. "Complexity-Based Decoding Of The Brain Reactions To Visual Stimuli With Different Frequencies," FRACTALS (fractals), World Scientific Publishing Co. Pte. Ltd., vol. 31(03), pages 1-8.
    • Handle: RePEc:wsi:fracta:v:31:y:2023:i:03:n:s0218348x2350055x
    DOI: 10.1142/S0218348X2350055X
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