Really interested in this topic, not sure about this paper: - Downplays how inaccurate the classifiers are (55-60% accuracy according to the figures). - No ta

Really interested in this topic, not sure about this paper: - Downplays how inaccurate the classifiers are (55-60% accuracy according to the figures). - No table of actual left / right frequency pushing frequency. So we can't compare this to the empirical rate of chance (they assume 50% - I would bet £100 that it's not 50%). - Exclusion policy of people who don't push buttons the right way was inadequately justified, particularly given the above. - Vague explanation of their statistical methods, even in the supplementary material. In particular I can imagine several ways to interpret what they said about the ANOVA - it shouldn't be up to me to guess what they did, the paper should tell me. - No use of hold-out data sets.