Event Abstract

Brain–Robot and Speller Interfaces Using Spatial Multisensory Brain-computer Interface Paradigms

  • 1 University of Tsukuba, Life Science of TARA, Japan

We present several novel approaches to adaptive and multisensory brain–computer interface (BCI) technologies. We review our successful brain—robot and Japanese kana—character—speller paradigms using exogenous (stimulus—driven) BCI paradigms, which are based on spatial auditory, tactile (somatosensory) and visual (code—modulated chromatic visual evoked potential — cVEP) modalities. The user intentions are decoded from the brainwaves in real time and translated to a symbiotic humanoid robot NAO navigation or 48—characters—based Japanese kana—character—speller. In base of the symbiotic humanoid robot NAO navigation communication protocol between the BCI output and the robot is realized in an internet—of—things (IoT) scenario using an user datagram protocol (UDP). This constitutes a direct brain and IoT interfacing paradigm. We also present our novel adaptive EEG preprocessing technique based on a synchrosqueezing transform (SST) applied to artifacts removal. SST outperforms the classical time–frequency analysis methods of the non—linear and non—stationary signals such as EEG. The proposed method is also computationally more effective comparing to the empirical mode decomposition (EMD) data—driven class of methods. The SST filtering allows for online EEG preprocessing application which is essential in the case of the BCI applications. Finally we discuss new machine learning techniques utilizing Riemannian geometry—based information geometry framework to classification of the user intentional responses elucidation from EEG. Results obtained from healthy users reproducing simple brain–robot control and Japanese kana spelling tasks support the research hypotheses of the spatial multsensory BCIs feasibility with support of data—driven and adaptive online signal processing methods.

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Keywords: multisensory perception, BCI, BMI (Brain Machine Interface), tactile sensing, Auditory Perception, Visual Perception, visual evoked potential (VEP), P300 event-related potential, Somatosensory Evoked Potentials (SEP), Auditory Evoked Potentials, Classification

Conference: German-Japanese Adaptive BCI Workshop, Kyoto, Japan, 28 Oct - 29 Oct, 2015.

Presentation Type: Oral presentation (Invited speakers)

Topic: Adaptive BCI

Citation: Rutkowski TM (2015). Brain–Robot and Speller Interfaces Using Spatial Multisensory Brain-computer Interface Paradigms. Front. Comput. Neurosci. Conference Abstract: German-Japanese Adaptive BCI Workshop. doi: 10.3389/conf.fncom.2015.56.00014

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Received: 11 Oct 2015; Published Online: 04 Nov 2015.

* Correspondence: Dr. Tomasz M Rutkowski, University of Tsukuba, Life Science of TARA, Tsukuba, Ibaraki, 160-0022, Japan, tomasz.rutkowski@riken.jp