Visual Stimulus Background Effects on SSVEP-Based Brain-Computer Interface
作者： Lin Yao , Jianjun Meng , Xinjun Sheng , Xiangyang Zhu , Xiaokang Shu
DOI: 10.1007/978-3-642-40852-6_46
关键词:
摘要: The flickering source is an indispensable component in steady-state visual evoked potentials based brain-computer interface, and its background severely influences the by repetitive stimuli. In this paper, we designed experiment paradigm under three different backgrounds context of SSVEP controlled small car, including black screen, static scene environment, dynamic environment. From spectrogram analysis EEG signals at occipital cortex, found apparent decrease amplitude condition comparing to reference screen. And changes these conditions further resulted identification accuracy decreasing as compared screen condition, which was evaluated from 10×10 cross validation. Besides, real-time control our results indicated that training exhibited better performance than
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