Table 2.
Main performance variables of the incentive go/no-go task and subjective motivation ratings by group and incentive condition
| Measures | ASD (n = 15) | TDC (n = 17) | P-values |
|---|---|---|---|
| M (s.d.) | M (s.d.) | ||
| Motivation rating (max. 100) | |||
| Start | 67.0 (24.7) | 75.9 (11.8) | 0.20 |
| Non-reward | 41.3 (28.9) | 45.8 (30.2) | 0.67 |
| Social reward | 82.0 (19.9) | 80.6 (15.6) | 0.82 |
| Monetary reward | 86.7 (13.9) | 94.1 (7.9) | 0.07 |
| RT for hits (in ms): | |||
| Non-reward | 244.8 (26.5) | 236.6 (28.7) | 0.41 |
| Social reward | 240.9 (23.7) | 234.4 (33.9) | 0.54 |
| Monetary reward | 243.4 (28.7) | 231.4 (29.2) | 0.25 |
| Go hit rate (accuracy in %): | |||
| Non-reward | 87.2 (10.3) | 91.3 (8.0) | 0.22 |
| Social reward | 89.9 (7.7) | 91.1 (7.9) | 0.67 |
| Monetary reward | 88.7 (8.7) | 92.5 (6.1) | 0.16 |
| No-go rejection rate (accuracy in %): | |||
| Non-reward | 95.8 (4.3) | 95.5 (7.2) | 0.87 |
| Social reward | 97.8 (3.5) | 97.5 (3.4) | 0.81 |
| Monetary reward | 98.4 (2.3) | 97.8 (3.8) | 057 |
Note: ASD = autism spectrum disorders, TDC = typically developing children. P-values based on two-sample t-tests.