Abstract: The loss of control over movement is one of the most devastating consequences of Parkinson’s disease (PD). The loss of control largely results from the gradual but inexorable destruction of dopamine-producing neurons in the substantia nigra pars compacta. As dopamine levels fall, the ability to initiate, control, learn, and sustain actions declines. Treatment with the dopamine precursor levodopa can partly overcome motor impairments; however, years of use often leads to levodopa-induced dyskinesia (LID), a debilitating condition characterized by uncontrolled writhing and ballistic movements, making continued treatment difficult or impossible. While progress has been made towards unraveling the molecular and cellular processes driving the development of LID, far less is known about the changes in ongoing neuronal activity that contribute to LID expression.