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Link to original content: http://www.ncbi.nlm.nih.gov/pubmed/12899258
How many people are able to operate an EEG-based brain-computer interface (BCI)? - PubMed Skip to main page content
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Clinical Trial
. 2003 Jun;11(2):145-7.
doi: 10.1109/TNSRE.2003.814481.

How many people are able to operate an EEG-based brain-computer interface (BCI)?

Affiliations
Clinical Trial

How many people are able to operate an EEG-based brain-computer interface (BCI)?

C Guger et al. IEEE Trans Neural Syst Rehabil Eng. 2003 Jun.

Abstract

Ninety-nine healthy people participated in a brain-computer interface (BCI) field study conducted at an exposition held in Graz, Austria. Each subject spent 20-30 min on a two-session BCI investigation. The first session consisted of 40 trials conducted without feedback. Then, a subject-specific classifier was set up to provide the subject with feedback, and the second session--40 trials in which the subject had to control a horizontal bar on a computer screen--was conducted. Subjects were instructed to imagine a right-hand movement or a foot movement after a cue stimulus depending on the direction of an arrow. Bipolar electrodes were mounted over the right-hand representation area and over the foot representation area. Classification results achieved with 1) an adaptive autoregressive model (39 subjects) and 2) band power estimation (60 subjects) are presented. Roughly 93% of the subjects were able to achieve classification accuracy above 60% after two sessions of training.

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