Table 2.

Success rate in moving robot arm. Figures indicate the percentage of time subjects were able to keep the robot moving during each trial. That is, subject 4 successfully moved the robot 96.7% of the time during all 10 stimulus trials for the first session of left-arm maximum voluntary contraction (left 1).

Subject	Left 1 (%)	Left 2 (%)	Right 1 (%)	Right 2 (%)	Subject average (%)
1	87.2±23.9	90.4±11.0	91.8±15.9	95.4±5.1	91.2±13.9
2	82.4±20.2	88.2±13.4	73.5±25.9	82±25.2	81.5±21.2
3*	74.7±25.8	64.3±21.7	63.7±33.6	46.8±38.7	62.4±29.9
4	96.7±3.2	98.4±2.9	90.2±19.1	86.5±23.6	93±12.2

*Subject 3 experiments had low-light levels, thus a lower SNR. A previous X-ray has also shown that he has a relatively thick skull.