Table 3.

Muscle onset times

Muscle	Onset time (ms)	n =
Biceps	−106	11
Triceps	−95	8
Pectoralis	−159	11
Deltoid	−185	10
Flexor carpi radialis	−137	15
Extensor carpi radialis	−165	15

Onset times for the muscle activity of six different arm muscles relative to the time of cursor movement onset. The number of recording sessions is shown to the right (n).