Table 2.
Properties of place cells.
| Arena | Kcnq3+/+, n = 79, N = 5 | Kcnq3−/−, n = 96, N = 4 | ||||
|---|---|---|---|---|---|---|
| All spikes | Burst | Single spikes | All spikes | Burst | Single spikes | |
| Peak rate, Hz | 4.93 ± 0.36 | 3.52 ± 0.30 | 2.60 ± 0.16 | 6.80 ± 0.46*** | 5.49 ± 0.44**** | 3.01 ± 0.20 |
| In-field rate, Hz | 2.25 ± 0.10 | 1.86 ± 0.08 | 1.58 ± 0.05 | 2.51 ± 0.09 | 2.27 ± 0.09*** | 1.69 ± 0.06 |
| Sparsity | 0.49 ± 0.03 | 0.38 ± 0.0317 | 0.54 ± 0.04 | 0.59 ± 0.04 | 0.45 ± 0.04 | 0.63 ± 0.04 |
| Inform. density, bit/spike | 1.06 ± 0.18 | 1.33 ± 0.20 | 0.82 ± 0.16 | 0.64 ± 0.09 | 1.01 ± 0.11 | 0.47 ± 0.06 |
| Track | Kcnq3+/+, n = 78, N = 5 | Kcnq3−/−, n = 94, N = 4 | ||||
|---|---|---|---|---|---|---|
| All spikes | Burst | Single spikes | All spikes | Burst | Single spikes | |
| Peak rate, Hz | 13.29 ± 0.97 | 9.74 ± 0.82 | 6.54 ± 0.53 | 15.28 ± 0.77 | 13.41 ± 0.78*** | 5.95 ± 0.41 |
| In-field rate, Hz | 3.73 ± 0.17 | 3.20 ± 0.16 | 2.69 ± 0.19 | 4.32 ± 0.21 | 4.31 ± 0.23**** | 2.47 ± 0.09 |
| Sparsity | 0.43 ± 0.04 | 0.25 ± 0.03 | 0.44 ± 0.04 | 0.52 ± 0.04* | 0.37 ± 0.03**** | 0.50 ± 0.03 |
| Inform. density, bit/spike | 1.31 ± 0.18 | 2.18 ± 0.25 | 1.20 ± 0.17 | 0.86 ± 0.12** | 1.23 ± 0.12*** | 0.86 ± 0.13* |
Data are presented as mean ± SEM, *, p < 0.025 (significance level is adjusted for comparisons of the same cells in the two enclosures), **, p < 0.01, ***, p < 0.001, **** p < 0.0001, Mann–Whitney-U-Test.