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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: J Neural Eng. 2014 May 19;11(3):035003. doi: 10.1088/1741-2560/11/3/035003

Figure 3.

Figure 3

This figure shows online BCI classification accuracy in the Words condition from both healthy subjects and the two subjects with ALS. The solid grey bars on the left show the performance of subjects A-N (this time omitting the sleeping subject M) in the Words condition on day 1. The hatched bars show the proportions of natural-language questions answered correctly by subjects H1 and H3. The cross-hatched bar shows the performance for H3 when the answer to each question was inferred from the responses to both its positively and negatively phrased version. Error bars indicate ±1 binomial standard error for each dataset.