it therefore appears that changes in the responsiveness of neural outputs from , or distal to , substantia nigra may contribute to the enhanced behavioral effects of dopaminergic stimulants caused by chronic exposure to dopaminergic antagonists , but that the critical neural changes responsible for cocaine sensitization probably do not occur at , or distal to , the nigral outflow from the basal ganglia .
C0038590
substantia nigra
C0004781
basal ganglia