Presentation 2012-11-17
Signal processing for Brain computer interface by SSVEP
Arao FUNASE, Akitoshi ITAI, Andrzej CICHOCKI, Ichi TAKUMI,
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Abstract(in English) In this paper, we will show you the results of feature extraction for brain computer interface (BCI) using steady-state visual evoked potential. Our final goal is to develop small and cheap SSVEP-BCI system. To achive our final goal, it is important to focus on EEG signals including environmental noises and analysis mothod. Therefore, we recored EEG signals without shild room and analyze EEG signals by only the discrete Fourier transformation (DFT). In this experiment, we show the subjects lighting flicker stimulis by a red LED. The flicking frequency is 10,15,20,and 25Hz. Results show that the detection ratio is 84%by using a spectrum intensity ratio with unsuper- vised classification while the simple feature using spectrum amplitude performs 72%. It is confirmed that the SSVEP is more enhanced by using spectrum intensity ratio. In order to avoid the false-positive detection due to harmonics, we need to apply a suitable classification technique.
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Keyword(in English) EEG signal / Steady State Visually Evoked Potentials (SSVEP) / Brain Computer Interface
Paper # MBE2012-59,NC2012-64
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Committee MBE
Conference Date 2012/11/9(1days)
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Registration To ME and Bio Cybernetics (MBE)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Signal processing for Brain computer interface by SSVEP
Sub Title (in English)
Keyword(1) EEG signal
Keyword(2) Steady State Visually Evoked Potentials (SSVEP)
Keyword(3) Brain Computer Interface
1st Author's Name Arao FUNASE
1st Author's Affiliation Graduate school of Engineering, Nagoya Institute of Technology:Brain Science Institute, RIKEN()
2nd Author's Name Akitoshi ITAI
2nd Author's Affiliation College of Engineering Chubu University
3rd Author's Name Andrzej CICHOCKI
3rd Author's Affiliation Brain Science Institute, RIKEN
4th Author's Name Ichi TAKUMI
4th Author's Affiliation Graduate school of Engineering, Nagoya Institute of Technology
Date 2012-11-17
Paper # MBE2012-59,NC2012-64
Volume (vol) vol.112
Number (no) 297
Page pp.pp.-
#Pages 5
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