TABLE 2.
Comparisons of spontaneous activities between the dorsal and ventral hippocampus of KO rats.
| Dorsal hippocampus | Ventral hippocampus | Independent t-test | ||
| SWRs | Amplitude (μV) | 70.9 ± 6.04 (24) | 173.8 ± 27.31 (28) | t29.63 = −3.15, p = 0.001 |
| IEI (s) | 2.29 ± 0.364 (24) | 0.625 ± 0.052 (28) | t23.95 = 1.26, p < 0.001 | |
| Probability clusters | 0.128 ± 0.057 (8) | 0.074 ± 0.024 (16) | t22 = 5.2, p = 0.308 | |
| Probability long clusters | 0.081 ± 0.053 (8) | 0.066 ± 0.031 (16) | t22 = 3.22, p = 0.79 | |
| ICI (ms) | 101.4 ± 11.5 (6) | 128.2 ± 7.5 (18) | t22 = −1.26, p = 0.079 | |
| Auto-correlation CA1-CA1 | 0.056 ± 0.015 (11) | 0.148 ± 0.03 (8) | t17 = −2.97, p = 0.009 | |
| Cross-correlation CA3-CA1 | 0.539 ± 0.055 (6) | 0.66 ± 0.066 (8) | t12 = −2.81, p = 0.205 | |
| Ripples | Power (mV × 10–7) | 0.252 ± 0.014 (2) | 2.44 ± 0.78 (14) | t14 = −1.64, p = 0.319 |
| Frequency (Hz) | 182.9 ± 4.48 (3) | 169.2 ± 3.2 (14) | t15 = −1.05, p = 0.08 | |
| MUA | MUA Baseline | 17.7 ± 2.28 (14) | 36.82 ± 6.57 (5) | t4.92 = −0.754, p = 0.046 |
| MUA–SWR | 117.53 ± 14.38 (14) | 420.51 ± 32.07 (5) | t17 = −2.93, p < 0.001 | |
| MUA–Delay | 5.34 ± 0.72 (14) | 6.57 ± 1.35 (5) | t17 = −1.47, p = 0.406 | |
| CSB | No of spikes | 2.46 ± 0.23 (9) | 2.68 ± 0.21 (15) | t22 = −0.66, p = 0.516 |
| ISI (ms) | 8.45 ± 1.2 (9) | 8.27 ± 0.67 (15) | t22 = 0.146, p = 0.886 |
Values represent mean ± S.E.M.
In parenthesis is shown the number of rats used in the analysis for all variables except the variables of CSB where the number of units is shown.