Figure 12.

Diagrams summarizing the classification scheme derived from the current study. a, A diagram showing the neuronal makeup of the mouse GPe. PV⁺ neurons (green), Npas1⁺ neurons (magenta), Lhx6⁺ neurons (mustard), Foxp2⁺ neurons (teal), and ChAT⁺ neurons (rust) are included in this classification scheme. The area of the rectangles represents the size of each neuron population. ChAT⁺ neurons are 5% of the total GPe neuron population and show no overlap with other known classes of GPe neurons. b, PV⁺ neurons and Npas1⁺ neurons are two principal, largely nonoverlapping neuron classes in the mouse GPe. They represent 55% and 27% of the total GPe neuron population. PV⁺ neurons and Foxp2⁺ neurons are also nonoverlapping. The latter constitutes 24% of the total GPe population. In contrast, 27% of PV⁺ neurons are Lhx6⁺. c, Npas1⁺ neurons and Foxp2⁺ neurons are two largely overlapping populations; 80% of Foxp2 neurons express Npas1. The remaining (28%) Foxp2⁻-Npas1⁺ population is Lhx6⁺.