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Complexity-Based Analysis Of The Variations In Skin Reaction In Different Emotional States

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  • ONDREJ KREJCAR

    (Skoda Auto University, Na Karmeli 1457, 293 01 Mlada Boleslav, Czech Republic†Malaysia Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia‡Media and Games Center of Excellence (MagicX), Universiti Teknologi Malaysia, Johor Bahru, Malaysia)

  • ANAMIKA PANDEY

    (�School of Business, Galgotias University, Greater Noida, Uttar Pradesh, India)

  • HAMIDREZA NAMAZI

    (Skoda Auto University, Na Karmeli 1457, 293 01 Mlada Boleslav, Czech Republic¶Biomedical Singal and Image Processing Lab, Galgotias University, Greater Noida, Uttar Pradesh, India)

Abstract

Analyzing the skin’s response to different external conditions is a significant area of research in biomedical engineering. This paper examines the variations in skin activity across different emotional states. We employed the concepts of complexity, calculating the approximate entropy (ApEn) and sample entropy (SampEn) of galvanic skin response (GSR) signals from 12 subjects who were exposed to 21 stimulus videos (three sessions), in total, categorized under six basic emotions: surprise, anger, fear, happiness, sadness, disgust, and an additional neutral state. The results demonstrated significant variations in the complexity of GSR signals across these emotional states. The methodology used in this study can also be extended to analyze other physiological signals, such as EEG, EMG, and ECG, to potentially understand the responses of various organs like the brain, muscles, and heart to different emotional stimuli.

Suggested Citation

  • Ondrej Krejcar & Anamika Pandey & Hamidreza Namazi, 2025. "Complexity-Based Analysis Of The Variations In Skin Reaction In Different Emotional States," FRACTALS (fractals), World Scientific Publishing Co. Pte. Ltd., vol. 33(01), pages 1-9.
    • Handle: RePEc:wsi:fracta:v:33:y:2025:i:01:n:s0218348x25500094
    DOI: 10.1142/S0218348X25500094
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