Applying deep-learning to a top-down SSVEP BMI

Min Hee Ahn, Byoung-Kyong Min

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

    5 Citations (Scopus)

    Abstract

    Brain-machine interfaces (BMIs) enable humans to control devices by modulating their brain signals. As the current BMI technology has several obstacles to overcome, additional sources of brain activity need to be explored. It seems plausible that the brain activity associated with top-down cognitive functions could open a new prospect in the field of BMIs. As top-down cognitive BMIs could exploit neural signals from more diverse networks, a deep-learning approach with complex hidden layers may provide a more optimal decoding performance. In this study, using our top-down steady-state visual evoked potential (SSVEP) paradigm (N = 20), we observed that the decoding accuracy (48.42%) of a deep-learning algorithm with a sigmoid activation function was significantly higher than that of regularized linear discriminant analysis (rLDA) with shrinkage (42.52%; t(19) =-3.183, p < 0.01), used in our previous study. Therefore, a deep-learning approach seems to be more optimized for classification in the top-down cognitive BMI paradigm.

    Original languageEnglish
    Title of host publication2018 6th International Conference on Brain-Computer Interface, BCI 2018
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1-3
    Number of pages3
    ISBN (Electronic)9781538625743
    DOIs
    Publication statusPublished - 2018 Mar 9
    Event6th International Conference on Brain-Computer Interface, BCI 2018 - GangWon, Korea, Republic of
    Duration: 2018 Jan 152018 Jan 17

    Publication series

    Name2018 6th International Conference on Brain-Computer Interface, BCI 2018
    Volume2018-January

    Other

    Other6th International Conference on Brain-Computer Interface, BCI 2018
    Country/TerritoryKorea, Republic of
    CityGangWon
    Period18/1/1518/1/17

    Bibliographical note

    Funding Information:
    This work was supported by the Basic Science Research program (grant numbers 2015R1A1A1A05027233), the ICT R&D program of MSIP/Institute for Information & Communications Technology Promotion (IITP; grant number 2017-0-00432), and the Information Technology Research Center (ITRC) support program (grant number IITP-2017-2016-0-00464) supervised by the IITP, which are funded by the Korean government (MSIT) through the National Research Foundation of Korea. The authors declare that they have no competing interests.

    Publisher Copyright:
    © 2018 IEEE.

    Keywords

    • BMI
    • DNN
    • EEG
    • SSVEP
    • deep-learning
    • top-down

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Human-Computer Interaction
    • Behavioral Neuroscience

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