Fig. 6.
A superimposing pattern of convergent, patchy corticostriatal terminals. Dual anterograde tracers were placed in frontal area 46 (red) and parietal area 7 (blue). Afferents from both sources invade the matrix compartment and the pattern of local overlap is predominantly (but not exclusively) one of superimposition/coincidence.
Reproduced, with permission of Society for Neuroscience, from Selemon and Goldman-Rakic (1985)