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Cognitive Neurodynamics
Erschienen in: Cognitive Neurodynamics 6/2013

01.12.2013 | Research Article

A comparison study of two P300 speller paradigms for brain–computer interface

verfasst von: Jiahui Pan, Yuanqing Li, Zhenghui Gu, Zhuliang Yu

Erschienen in: Cognitive Neurodynamics | Ausgabe 6/2013

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Abstract

In this paper, a comparison of two existing P300 spellers is conducted. In the first speller, the visual stimuli of characters are presented in a single character (SC) paradigm and each button corresponding to a character flashes individually in a random order. The second speller is based on a region-based (RB) paradigm. In the first level, all characters are grouped and each button corresponding to a group flashes individually in a random order. Once a group is selected, the characters in it will appear on the flashing buttons of the second level for the selection of desired character. In a spelling experiment involving 12 subjects, higher online accuracy was obtained on the RB paradigm-based P300 speller than the SC paradigm-based P300 speller. Furthermore, we analyzed P300 detection performance, the P300 waveforms and Fisher ratios using the data collected by the two spellers. It was found that the stimuli display paradigm of the RB speller enhances P300 potential and is more suitable for P300 detection.
Vorheriger Artikel Stability switches and double Hopf bifurcation in a two-neural network system with multiple delays
Nächster Artikel Electronic evaluation for video commercials by impression index

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Metadaten
Titel
A comparison study of two P300 speller paradigms for brain–computer interface
verfasst von
Jiahui Pan
Yuanqing Li
Zhenghui Gu
Zhuliang Yu
Publikationsdatum
01.12.2013
Verlag
Springer Netherlands
Erschienen in
Cognitive Neurodynamics / Ausgabe 6/2013
Print ISSN: 1871-4080
Elektronische ISSN: 1871-4099
DOI
https://doi.org/10.1007/s11571-013-9253-1

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