Target classification in a novel SSVEP-RSVP based BCI gaming system

Tapsya Nayak, Li Wei Ko, Tzyy Ping Jung, Yufei Huang

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

Recently game-based brain-computer interface (BCI) systems using electroencephalography (EEG) has been gaining popularity, providing a sophisticated experience to its users. Here we present such a novel hybrid system based on rapid serial visual presentation (RSVP) in conjunction with steady-state visual evoked potentials (SSVEP). Based on a matching computer game Jewel Quest a game is designed wherein a sequence of jewel images containing rare targets (< 3%) in an RSVP paradigm is presented on a display at four distinct locations each flickering at different rates (4, 5, 6 and 7 Hz). A score is awarded upon successful detection of target image from neural signals. During real-time implementation to achieve higher classification speeds, EEG signals were epoched at the onset of each image, creating a high degree of class overlap and imbalance. Given these challenges in our EEG datasets, we present classifiers that can classify single-trial EEG epochs at the onset of target image presentation accurately. Initial results from 14 subjects indicate Hidden Markov Model (HMM) with Dirichlet emission probabilities provide 1% higher, on average, the area under the precision-recall curve (AUC-PR) compared to the ensemble technique Bagging, commonly used to handle class imbalance.

原文English
主出版物標題2019 IEEE International Conference on Systems, Man and Cybernetics, SMC 2019
發行者Institute of Electrical and Electronics Engineers Inc.
頁面4194-4198
頁數5
ISBN(電子)9781728145693
DOIs
出版狀態Published - 十月 2019
事件2019 IEEE International Conference on Systems, Man and Cybernetics, SMC 2019 - Bari, Italy
持續時間: 6 十月 20199 十月 2019

出版系列

名字Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
2019-October
ISSN(列印)1062-922X

Conference

Conference2019 IEEE International Conference on Systems, Man and Cybernetics, SMC 2019
國家Italy
城市Bari
期間6/10/199/10/19

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