Fig. 4From: Cybathlon experiences of the Graz BCI racing team Mirage91 in the brain-computer interface disciplineGraz-BCI Paradigm: At second −3, a cross appeared on the screen, followed by an auditory cue at second −1 to get the attention of the pilot candidate. At second 0, the cue is presented, followed by a five second imagery period. Depending on the cue, the pilot performed the designated task for the whole imagery periodBack to article page