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Recently, steady-state somatosensory evoked potentials (SSSEPs) which are brain responses to tactile stimulation of specific frequency in somatosensory have been researched in brain-computer interface (BCI) groups. Classification of both feet is important in gait control system. Previous SSSEP studies have mainly researched a feasibility of discrimination by stimulator attached on upper limb (e.g...
To increase information transfer rate (ITR) in brain-computer interface (BCI), many approaches better extracting new and robust features, or effectively combining such features have been proposed. Recently, hybrid BCI combining features simultaneously acquired from two different experimental paradigms has been reported. In this work, subjects performed tasks typically used in two BCI approaches, namely...
Steady-state somatosensory evoked potentials (SSSEPs) have been elicited applying vibro-tactile stimulation to all fingertips of the right hand. Nine healthy subjects participated in two sessions within this study. All fingers were stimulated 40 times with a 200-Hz carrier frequency modulated with a rectangular signal. The frequencies of the rectangular signal ranged between 17 and 35 Hz in 2 Hz steps...
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