A re-evaluation of the current model of the basal ganglia

The current model of basal ganglia organization has been developed progress ively over the last two decades in the light of key observations made at bo th experimental and clinical levels. This model has been highly successful in that it has stimulated a large amount of research in the field. However, several experimental and clinical findings that are at odds with the model have accumulated during the last: decade. This paper reviews some of our o wn single-axon tracing studies in primates, which call for a re-evaluation of the current basal ganglia model. (C) 2001 Elsevier Science Ltd. All righ ts reserved.