Spatial Auditory Two-step Input Japanese Syllabary Brain-computer Interface Speller | Zendy

Moonjeong Chang | Zendy; Koichi Mori | Zendy; Shoji Makino | Zendy; Tomasz M. Rutkowski | Zendy

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Spatial Auditory Two-step Input Japanese Syllabary Brain-computer Interface Speller

Author(s) -

Moonjeong Chang,

Koichi Mori,

Shoji Makino,

Tomasz M. Rutkowski

Publication year - 2014

Publication title -

procedia technology

Language(s) - English

Resource type - Journals

ISSN - 2212-0173

DOI - 10.1016/j.protcy.2014.11.007

Subject(s) - brain–computer interface , interfacing , computer science , oddball paradigm , interface (matter) , speech recognition , electroencephalography , event related potential , spelling , human–computer interaction , artificial intelligence , psychology , neuroscience , computer hardware , linguistics , philosophy , bubble , maximum bubble pressure method , parallel computing

We present a concept and a pilot study of a two-step input speller application combined with a spatial auditory brain-computer interface (BCI) for locked-in syndrome (LIS) users. The application has been developed for 25 Japanese syllabary (hiragana) characters using a two-step input procedure, in order to create an easy-to-use BCI-speller interface. In the proposed procedure, the user first selects the representative letter of a subset, defining the second step. In the second step, the final choice is made. At each interfacing step, the user's intentional choices are classified based on the P300 event related potential (ERP) responses captured in the EEG, as in the classic oddball paradigm. The BCI experiment and EEG results of the pilot study confirm the effectiveness of the proposed spelling method

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