Fig. 4From: Fatigue in children using motor imagery and P300 brain-computer interfacesAlpha Band Power. pre-task resting-state and post-task resting state alpha band power for each session. Boxplot lines indicate quartiles. Orange lines indicate the median and black diamonds are sample mean. Bars are plus or minus 1.5x the interquartile range. MI: motor imagery; VID: videoBack to article page