Steady-state somatosensory evoked potentials: suitable brain signals for Brain-Computer Interfaces

Publikation: Beitrag in einer FachzeitschriftArtikel


One of the main issues in designing a brain-computer interface (BCI) is to find brain patterns, which could easily be detected. One of these pattern is the steady-state evoked potential (SSEP). SSEPs induced through the visual sense have already been used for brain-computer communication. In this work, a BCI system is introduced based on steady-state somatosensory evoked potentials (SSSEPs). Transducers have been used for the stimulation of both index fingers using tactile stimulation in the "resonance"-like frequency range of the somatosensory system. Four subjects participated in the experiments and were trained to modulate induced SSSEPs. Two of them learned to modify the patterns in order to set up a BCI with an accuracy of between 70% and 80%. Results presented in this work give evidence that it is possible to set up a BCI which is based on SSSEPs.
Seiten (von - bis)30-37
FachzeitschriftIEEE Transactions on Neural Systems and Rehabilitation Engineering
PublikationsstatusVeröffentlicht - 2006

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