A Novel Mutual Information-based Approach for Neurophysiological Characterization of Sense of Presence in Virtual Reality

作     者：Ronca, Vincenzo Babiloni, Fabio Aricò, Pietro 

作者机构：Sapienza University of Rome Department of Computer Control and Management Engineering Italy Sapienza University of Rome Department of Physiology and Pharmacology "vittorio Erspamer" Italy 

出 版 物：《IEEE Transactions on Biomedical Engineering》 (IEEE Trans. Biomed. Eng.)

年 卷 期：2025年第PP卷

页      面：PP页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

主　　题：Virtual reality 

摘      要：Objective: The presented work aimed to investigate neurophysiological markers of sense of presence in virtual reality. The study was based on developing and preliminary validating a neurophysiological -based approach for sense of presence evaluation. Methods: A VR environment was designed to modulate multisensory conditions, including visual, auditory, vibrotactile stimuli. EEG, ECG, EDA signals were recorded. The Mutual Information-based sense of presence index (SoPMI) was developed as a synthetic metric for sense of presence, integrating multiple physiological signals. Signal preprocessing and analysis were conducted using EEG-based Global Field Power and Skin Conductance Level to explore their relationship with sense of presence under different VR conditions. Results: SoPMI index demonstrated sensitivity to varying levels of multisensory integration and immersion (all p © 1964-2012 IEEE.