Table 2.

Number of responsive DA neurons to the CS and reinforcers

Monkey DN Monkey SK
Partially learned stage Fully learned stage Partially learned stage Fully learned stage
CS 4 23 11 16
Reinforcers 2 30 12 26
CS and reinforcers 1 18 7 16
Total 8 44 19 37
  • Numbers represent responsive neurons determined by Wilcoxon single-rank test at p < 0.05 (Kimura, 1986).