Figure 1

Block diagram of the three control strategies. Conventional myoelectric control (left) uses two separate decision nodes, each receiving two channels to determine a motion output based on EMG amplitude. Sequential pattern recognition control receives all EMG channels as input and can output any of the four discrete motions (Elbow Flexion/Extension or Hand Open/Close) or no movement. Simultaneous pattern recognition control also receives all EMG channels as input, outputs any of the four discrete motions, no movement, and additionally, any combination of elbow and hand movements.