Table 1.
Experiment 3: Percent time freezing during unpaired tone and shock presentations on Day 1.
| Presentation | Duration(s) | HDID-1 | HDID-2 | HS | |||
|---|---|---|---|---|---|---|---|
| Shock | No Shock | Shock | No Shock | Shock | No Shock | ||
| Pre | 30 | 1.4 ± 1.4 | 0.0 ± 0.0 | 1.0 ± 1.0 | 3.4 ± 1.9 | 4.9 ± 2.0 | 1.0 ± 1.0 |
| Tone 1 | 30 | 20.6 ± 6.6 | 4.1 ± 2.9 | 6.1 ± 3.4 | 2.7 ± 1.8 | 1.4 ± 1.4 | 3.5 ± 2.4 |
| ITI, then + Shock | (90) 88 + 2 | 9.0 ± 3.1 | 2.4 ± 0.8 | 3.9 ± 1.2 | 3.4 ± 1.2 | 6.4 ± 1.7 | 2.8 ± 1.6 |
| ITI | 60 | 4.8 ± 2.0 | 1.4 ± 1.0 | 1.9 ± 1.1 | 2.2 ± 1.0 | 6.8 ± 2.4 | 1.8 ± 0.9 |
| Tone 2 | 30 | 9.4 ± 3.3 | 2.4 ± 2.4 | 7.9 ± 6.0 | 5.3 ± 2.6 | 6.8 ± 2.3 | 3.6 ± 2.4 |
| ITI, then + Shock | (30) 28 + 2 | 8.2 ± 5.1 | 1.4 ± 1.4 | 9.6 ± 2.1 | 4.6 ± 2.0 | 14.1 ± 3.3 | 3.3 ± 1.7 |
| ITI, then + Shock | (90) 88 + 2 | 16.2 ± 6.6 | 4.3 ± 1.3 | 8.1 ± 2.6 | 4.1 ± 1.4 | 7.0 ± 2.8 | 5.5 ± 2.1 |
| Tone 3 | 30 | 17.0 ± 4.6 | 3.8 ± 1.9 | 15.9 ± 3.8 | 5.1 ± 2.3 | 5.7 ± 3.3 | 6.8 ± 2.9 |
| ITI | 30 | 25.8 ± 5.2 | 4.7 ± 3.2 | 15.8 ± 4.9 | 3.7 ± 2.0 | 7.7 ± 2.9 | 1.2 ± 1.2 |
| Tone 4 | 30 | 19.0 ± 8.2 | 8.6 ± 5.5 | 24.5 ± 6.4 | 3.4 ± 1.9 | 16.7 ± 5.6 | 3.8 ± 2.0 |
| ITI, then + Shock | (60) 58 + 2 | 30.4 ± 8.2 | 2.7 ± 1.8 | 18.6 ± 4.6 | 10.4 ± 2.7 | 11.6 ± 5.3 | 8.3 ± 2.3 |
| ITI | 120 | 25.6 ± 7.8 | 5.8 ± 2.1 | 23.4 ± 4.9 | 4.6 ± 1.5 | 20.7 ± 7.9 | 4.3 ± 1.3 |
ITI = intertrial interval.