Relationship between cortex and basal ganglia

The major input to the basal ganglia is that from the cerebral cortex to the striatum. This input is multi-faceted in that there are multiple determinants to its organization. First, there is a topographic organization in corticostriatal inputs that is continued 

Evidence for the maintenance of the topography of corticostriatal projections through the basal ganglia back through the thalamus to the cortex, eomes from studies in the primate by Strick and his colleagues (Holsapple et al. 1991 Hoover and Strick 1993 Schell and Strick 1984 Strick 1985). In one study in which they employed anterogradely transported trans-neuronally transferred viruses as axonal connectional markers which 

---