Motor cortical activity in the beta frequency range is one of the strongest and most studied
movement-related neural signals. At the single trial level, beta band activity is often
characterized by transient, high amplitude, bursting events rather than slowly modulating
oscillations. The timing of these bursting events is tightly linked to behavior, suggesting a
more dynamic functional role for beta activity than previously believed. However, the neural
mechanisms underlying beta bursts in sensorimotor circuits are poorly understood. To …