Table 1.
Thalamic neuronal activity before and after urethane anesthesia (“urethane only”).
| Baseline (Awake) | Urethane 1h | Urethane 2h | Urethane 3h | Urethane 4h | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| FR (d/s) | Ratio (%) | FR (d/s) | Ratio (%) | FR (d/s) | Ratio (%) | FR (d/s) | Ratio (%) | FR (d/s) | Ratio (%) | |
| Overall | 8.21 ± 0.19 | 0.77 ± 0.15 | 0.93 ± 0.05 | 1.27 ± 0.06 | 1.94 ± 0.04 | |||||
| Tonic | 8.06 ± 0.17 | 98.1 | 0.70 ± 0.16 | 90.3 | 0.75 ± 0.04 | 80.4 | 0.98 ± 0.05 | 77.2 | 1.44 ± 0.04 | 73.0 |
| Burst Spike | 0.15 ± 0.02 | 1.9 | 0.06 ± 0.01 | 9.7 | 0.18 ± 0.01 | 19.5 | 0.29 ± 0.24 | 22.8 | 0.20 ± 0.01 | 27.0 |
Baseline is the spontaneous neural activity of the awake state before urethane injection. Neuronal activity after urethane injection was analyzed in 1 hrs intervals. N = 32 neurons, 7 mice. All values are mean ± SEM. FR: firing rate, d/s: discharges/sec, ratio: percentage of respective firing modes from the total number of spikes. No formalin was injected at any point.