Figure 9.

Topographic distribution of manganese signal from ACC (red) and OFC (blue) after injections of isotonic MnCl₂ in monkey S. Purple areas are those to which both regions projected. Note that manganese transport after the ACC injection was more widespread than after the OFC injection, and both regions projected to a set of common targets. A, Manganese signal after the OFC injection was located more ventrally than that after the ACC injection, as seen in the sagittal plane. B, Manganese signal after the OFC injection was more medially restricted than after the ACC injection, as seen in the horizontal plane. C, D, In striatum, manganese signal after the OFC injection was located more ventrally than after the ACC injection, as seen in the coronal plane. These maps do not show the range of signal intensity differences visible in Figures 6 and 8. Thin lines on sagittal and horizontal slices indicate rostrocaudal levels of OFC, ACC, caudate (Cd), putamen (Pu), globus pallidus externa (GPe), ventral pallidum (VP), and thalamus (Thal). Scale bars, 10 mm.