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 language | English |
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Title of host publication | 2018 6th International Conference on Brain-Computer Interface, BCI 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1-3 |
Number of pages | 3 |
ISBN (Electronic) | 9781538625743 |
DOIs | |
Publication status | Published - 2018 Mar 9 |
Event | 6th International Conference on Brain-Computer Interface, BCI 2018 - GangWon, Korea, Republic of Duration: 2018 Jan 15 → 2018 Jan 17 |
Publication series
Name | 2018 6th International Conference on Brain-Computer Interface, BCI 2018 |
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Volume | 2018-January |
Other
Other | 6th International Conference on Brain-Computer Interface, BCI 2018 |
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Country/Territory | Korea, Republic of |
City | GangWon |
Period | 18/1/15 → 18/1/17 |
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