This volume contains articles describing research on the basic, pre-clinical and clinical neuroscience of the basal ganglia written by attendees of the 10th Triennial Meeting of the International Basal Ganglia Society (IBAGS) that was held June 20-24th, 2010 at the Ocean Place Resort in Long Branch, New Jersey, USA. For each of the preceding 9 IBAGS meetings, the meeting proceedings were published conventionally as a volume in the Advances in Behavioral Biology series. These volumes were expensive, were published only in very small quantities, had very limited availability to both basal ganglia researchers and the general neuroscience community, were not available on-line and the articles contained in each were not indexed in online searchable databases. Now, for the first time, IBAGS is taking full advantage of modern innovations in scientific publication and publishing IBAGS X as a Research Topics issue of Frontiers in Systems Neuroscience. The issue will be available on-line and is fully indexed by searchable databases including PubMed. Articles will include reports on the latest research on the anatomy and neurophysiology of single neurons and functional circuitry in the striatum, globus pallidus, subthalamic nucleus and substantia nigra as well as the latest data on animal models of basal ganglia dysfunction as well as behavioral and clinical studies in human patients.