Table 2.

Proportions of CDh and CDt-projecting neurons in two regions of SNc separated by a discriminant plane.

	CDh-projecting (%)	CDt-projecting (%)
Monkey SM
Group 1(c-d-l SNc)	8.4	88.9
Group 2(r-v-m SNc)	91.6	11.1
Monkey ZO
Group 1(c-d-l SNc)	10.2	83.0
Group 2(r-v-m SNc)	89.8	17.0

Two groups of CDh- and CDt-projecting DA neurons are spatially separated by a discriminant analysis. Percentage indicates the proportion of CDh- and CDt-projecting neurons inside each discriminant plane (green plane in Figures 4C and 5E).