Table 1.
Behavioral results
| Easy (deep) | Difficult (shallow) | |||
|---|---|---|---|---|
| Low reward | High reward | Low reward | High reward | |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |
| Subjective motivation (cm) | 4.5 (2.2) | 6.3 (3.0) | 4.1 (2.6) | 8.2 (1.8) |
| Proportion of hit responses during retrieval (%) | ||||
| High‐confidence Hit | 49.3 (15.8) | 47.9 (15.8) | 33.8 (15.5) | 37.7 (17.0) |
| Low‐confidence Hit | 26.9 (12.2) | 26.2 (12.8) | 27.0 (11.6) | 25.5 (10.7) |
| No. trials | ||||
| High‐confidence Hit | 31.4 (10.1) | 30.4 (10.1) | 21.5 (9.9) | 23.9 (10.9) |
| Low‐confidence Hit | 17.1 (7.7) | 16.6 (8.1) | 17.2 (7.3) | 16.1 (6.7) |
| Miss | 15.1 (6.4) | 16.5 (6.6) | 24.9 (8.8) | 23.3 (8.7) |
| Response time (RT) during retrieval (ms) | ||||
| High‐confidence Hit | 1280.8 (236.2) | 1255.0 (246.1) | 1277.5 (219.2) | 1250.4 (220.7) |
| Low‐confidence Hit | 1708.7 (397.7) | 1725.1 (452.8) | 1679.1 (382.7) | 1766.7 (462.4) |
| Miss | 1690.7 (409.5) | 1754.5 (450.1) | 1686.2 (428.8) | 1701.4 (441.4) |