Table 1.
Resting and active membrane properties of daytime and nighttime VIP+, NMS+, and GRP+ SCN neurons
| Firing rate (Hz) | Rin (GΩ) | Vm (mV) | ||
|---|---|---|---|---|
| Day | VIP+ | 3.1 ± 0.2a n = 27 |
2.2 ± 0.2b n = 27 |
−42.9 ± 0.8 n = 25 |
| NMS+ | 3.4 ± 0.4c n = 19 |
2.7 ± 0.2d n = 20 |
−40.8 ± 1.1e n = 22 |
|
| GRP+ | 4.0 ± 0.5 n = 31 |
3.1 ± 0.3f n = 18 |
−40.6 ± 0.5 n = 17 |
|
| Night | VIP+ | 2.0 ± 0.2a n = 37 |
1.4 ± 0.1b n = 22 |
−43.9 ± 1.1 n = 27 |
| NMS+ | 1.4 ± 0.3c n = 13 |
1.9 ± 0.1d n = 19 |
−45.4 ± 0.8e n = 19 |
|
| GRP+ | 2.9 ± 0.3 n = 25 |
2.0 ± 0.1f n = 15 |
−42.1 ± 0.6 n = 21 |
Values are mean ± SEM; n = number of cells. Rin, input resistance; Vm, membrane potential.
a-fValues in daytime and nighttime VIP+(a,b), NMS+(c,d,e), and GRP+(f) SCN neurons are significantly different (a,c,d,e,fp < 0.01; bp < 0.05; Kolmogorov–Smirnov test).