Table 3.
Average time freezing in CFC in DBA/2J inbred mice and F1 hyrbids. Mice were placed in a novel cage for three minutes in a training session (SC or CS) and a testing session (SC-t or CS-t); training and testing were separated by 60 min in the home cage. SC, shock context; mice received the electric shock during the training session immediately on being placed in the novel cage. CS, context-shock; mice received the electric shock during the training session after three minutes in the novel cage. Times are provided in seconds. For numbers of mice in each group and SEM of times, see Figure 2.
| SC | SC-t | CS | CS-t | |||
|---|---|---|---|---|---|---|
| DBA/2J | Female | C | 91 | 66 | 60 | 127 |
| Male | C | 64 | 55 | 57 | 84 | |
| DBA X Dp17 | Female | C | 15 | 29 | 14 | 97 |
| Tr | 21 | 22 | 11 | 104 | ||
| Male | C | 16 | 23 | 11 | 73 | |
| Tr | 21 | 28 | 14 | 83 | ||
| DBA X Dp10 | Female | C | 37 | 52 | 13 | 86 |
| Tr | 23 | 37 | 13 | 60 | ||
| Male | C | 35 | 38 | 15 | 101 | |
| Tr | 26 | 29 | 17 | 73 |