Table 2.
The number and percentage of neurons that showed a significant difference in activity depending on the reward size (two-way ANOVA, p < 0.01)
| Area | Early reward-delay | Late reward-delay | Post-reward 4–800 ms | Post-reward 8–1200 ms | Post-reward 12–1600 ms |
|---|---|---|---|---|---|
| Reward-value effect (large > small) | |||||
| Monkey S | |||||
| Dorsal | 9 (12.2) | 6 (8.1) | 2 (2.7) | 3 (4.1) | 3 (4.1) |
| Central | 24 (29.6) | 14 (17.3) | 21 (25.9) | 14 (17.3) | 14 (17.3) |
| Ventral | 1 (4.2) | 1 (4.2) | 8 (33.3) | 8 (33.3) | 5 (20.8) |
| Monkey F | |||||
| Dorsal | 15 (23.4) | 9 (14.1) | 5 (7.8) | 6 (9.4) | 7 (10.9) |
| Central | 7 (31.8) | 4 (18.2) | 6 (27.3) | 3 (13.6) | 2 (9.1) |
| Ventral | 6 (54.5) | 3 (27.3) | 7 (63.6) | 3 (27.3) | 3 (27.3) |
| Reward-value effect (small > large) | |||||
| Monkey S | |||||
| Dorsal | 18 (24.3) | 18 (24.3) | 8 (10.8) | 8 (10.8) | 7 (9.5) |
| Central | 10 (12.3) | 8 (9.9) | 5 (6.2) | 6 (7.4) | 5 (6.2) |
| Ventral | 0 (0.0) | 1 (4.2) | 1 (4.2) | 3 (12.5) | 3 (12.5) |
| Monkey F | |||||
| Dorsal | 13 (20.3) | 12 (18.8) | 22 (34.4) | 19 (29.7) | 15 (23.4) |
| Central | 4 (18.2) | 6 (27.3) | 7 (31.8) | 3 (13.6) | 2 (9.1) |
| Ventral | 2 (18.2) | 2 (18.2) | 2 (18.2) | 1 (9.1) | 1 (9.1) |