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Exploration of motion-associated information from EEG during upper limb movement

Published: 27 February 2024 Publication History

Abstract

Upper limb exoskeleton power-assisted system is dedicated to assisting disabled or vulnerable groups to perform activities of daily living, where the primary object is to differentiate EEG signals that correspond to motion and idle states. This paper proposed a novel method for detecting flexion-related peaks and extension-related peaks autonomously. First, EEG data are analyzed to understand signal characteristics and establish baseline distribution models for individual subjects. Then, the detection threshold is derived by the baseline power estimation, and a sliding window is employed to eliminate high-amplitude random noise. The windowed average EEG signal is compared with the threshold to determine whether it corresponds to motion. This method is applied to EEG data collected during shoulder and elbow movement experiments, and the results are encouraging, with accurate detection of flexion-related peaks and extension-related peaks in most cases. These findings can aid in labeling motion processes in EEG, enabling the correlation of EEG signals with control commands for power assistance.

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    ICBRA '23: Proceedings of the 2023 10th International Conference on Bioinformatics Research and Applications
    September 2023
    226 pages
    ISBN:9798400708152
    DOI:10.1145/3632047
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Published: 27 February 2024

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    Author Tags

    1. BMI
    2. EEG signals
    3. elbow
    4. peak detection
    5. shoulder
    6. upper limb

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