Fig. 8.

Locations of tonically active neurons with reward responses. Data from monkeys A and B were drawn at corresponding positions on coronal sections of the striatum. Anteroposterior levels are shown according to the atlas of Cowan and Szabo (1984).Striped areas represent approximate extent of the sensorimotor striatum, whereas white areas correspond to the associative striatum (see Materials and Methods). Open circles represent neurons responding to the delivery of reward;small horizontal lines represent neurons not responding to reward. There were no significant differences in the fractions of responsive neurons in the sensorimotor striatum as compared with the associative striatum.