Figure 5.
Separate dopamine projections to caudate head and caudate tail. (A) Injection sites of retrograde tracers. Two different retrograde tracers, Diamidino yellow (DY) and cholera toxin subunit B (CTB), were injected in caudate head (CDh) and caudate tail (CDt) of the same monkey. (B and C) Retrogradely labelled neurons in the SN (B: sagittal view, C: coronal view). Yellow triangles: caudate head-projecting neurons; red triangles: caudate tail-projecting neurons in B. Scale bar = 1 mm. In C, coronal sections of SN are shown from the rostral to caudal levels. Scale bar = 2 mm. DA = dopamine. Reproduced with permission from Kim et al. (2014).