Fig. 8From: Cybathlon experiences of the Graz BCI racing team Mirage91 in the brain-computer interface disciplineFirst online BCI performance Left: Time-frequency maps for motor imagery tasks hand and feet and subtraction. Top right: Online performance results peaked at 63.1% (red dot) (chance level calculated using an adjusted wald-interval, alpha = 0.05), the calculated chance level lies at 31.2%. Bottom right: Confusion matrix for second 1 to 5, values in percentBack to article page