A high rate online SSVEP based brain-computer interface speller
2011 5th International IEEE/EMBS Conference on Neural Engineering, 2011•ieeexplore.ieee.org
This paper presents an online steady-state visual evoked potential (SSVEP) based brain-
computer interface (BCI). Stimuli are displayed on a liquid crystal display (LCD) screen with
a frame based encoding method to elicit SSVEPs with a wide range of frequencies. This
system focuses strongly on practicability and convenience, including an adequate alphabet
(42 characters) that can allow a wide range of options. Four healthy subjects attain a mean
information transfer rate (ITR) of 61.64�3.61 bits/min.
computer interface (BCI). Stimuli are displayed on a liquid crystal display (LCD) screen with
a frame based encoding method to elicit SSVEPs with a wide range of frequencies. This
system focuses strongly on practicability and convenience, including an adequate alphabet
(42 characters) that can allow a wide range of options. Four healthy subjects attain a mean
information transfer rate (ITR) of 61.64�3.61 bits/min.
This paper presents an online steady-state visual evoked potential (SSVEP) based brain-computer interface (BCI). Stimuli are displayed on a liquid crystal display (LCD) screen with a frame based encoding method to elicit SSVEPs with a wide range of frequencies. This system focuses strongly on practicability and convenience, including an adequate alphabet (42 characters) that can allow a wide range of options. Four healthy subjects attain a mean information transfer rate (ITR) of 61.64�3.61 bits/min.
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