Figure 2.
Different types of neural signals during action sequences. There are neurons showing phasic firing modulation during the execution of every element in a sequence (‘Every action’), neurons signaling selectively the initiation (‘Start’), termination (‘Stop’) or both initiation and termination (‘Boundary’) of the action sequence, neurons exhibiting sustained oscillation firing (‘Sustained’) or inhibition (Inhibited) throughout the whole action sequence. See text for detailed references.