Table 2.
Summary of percent freezing (Mean ± SE) in the auditory fear acquisition and retention test based on raw data shown in Fig. 4.
Acquisition test | ||||
---|---|---|---|---|
Trials | ||||
1 | 2 | 3 | ||
1st min | ||||
CS control | 0.0 ± 0.0 | 1.0 ± 1.0 | 1.8 ± 1.0 | |
US control | 0.0 ± 0.0 | 22.8 ± 5.7 | 37.5 ± 13.0 | |
CS-US association | 0.8 ± 0.8 | 53.3 ± 11.3 | 50.0 ± 8.3 | |
2nd min | ||||
CS control | 0.0 ± 0.0 | 5.0 ± 3.8 | 4.0 ± 3.0 | |
US control | 51.6 ± 11.7 | 65.0 ± 11.7 | 66.7 ± 13.3 | |
CS-US association | 78.3 ± 10.0 | 90.0 ± 3.3 | 68.3 ± 10.0 | |
Retention test | ||||
Pre-clicks | Post-clicks | |||
CS control | 0.4 ± 0.4 | 2.7 ± 1.6 | ||
US control | 2.3 ± 1.1 | 2.2 ± 1.8 | ||
CS-US association | 5.0 ± 1.7 | 41.9 ± 10.7*** |
P<0.001, significantly different from CS and US control groups.