Fig. 4From: Blending of brain-machine interface and vision-guided autonomous robotics improves neuroprosthetic arm performance during graspingARAT performance and difficulty. a The frequency of each trial result for Subject 1 (left) and Subject 2 (right). Completion times are shown for successful trials and the failure mode (time out or out of bounds) is noted for failed trials. Assisted (blue bars) and unassisted (red bars) trials are shown separately. b The frequency of each reported difficulty score for assisted and unassisted trial sets (1 = extremely easy, 10 = extremely difficult). Both subjects were more successful and reported that the task was easier during the trials with shared controlBack to article page