Detection of event related optical signal (EROS) in episodic memory retrieval task using ICA-based Kalman filter

Sunghee Dong, Jaeyoung Shin, Jichai Jeong

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    We investigate the noise reduction performance for event related optical signal (EROS) measured from 5-channel near-infrared spectroscopy to reduce noise by using grand average and independent component analysis (ICA)-based Kalman filter. Episodic memory retrieval task was performed and expected to show brain activity around 500 ms from right prefrontal cortex. We verified that positive deviation in response to old word occurred around 500 ms using grand average for three subjects. After applying ICA-based Kalman filter on data from each subject, the clear positive deviation was shown graphically. Also, the ratio of positively deviated epoch in response to old word increased by 14 % after ICA-based Kalman filtering.

    Original languageEnglish
    Title of host publicationICCAS 2015 - 2015 15th International Conference on Control, Automation and Systems, Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages380-382
    Number of pages3
    ISBN (Electronic)9788993215090
    DOIs
    Publication statusPublished - 2015 Dec 23
    Event15th International Conference on Control, Automation and Systems, ICCAS 2015 - Busan, Korea, Republic of
    Duration: 2015 Oct 132015 Oct 16

    Other

    Other15th International Conference on Control, Automation and Systems, ICCAS 2015
    Country/TerritoryKorea, Republic of
    CityBusan
    Period15/10/1315/10/16

    Keywords

    • Episodic memory
    • Event related optical signal
    • Independent component analysis
    • Kalman filter
    • Memory retrieval task
    • Near-infrared spectroscopy

    ASJC Scopus subject areas

    • Control and Systems Engineering

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