Table 1.
Electrophysiological properties of PeriV and PCRt interneurons
Recording Site | SupV | Medial PeriV | IntV | PCRt | All Neurons |
---|---|---|---|---|---|
n | 39 | 19 | 16 | 17 | 91 |
RMP, mV | −56.9 ± 0.9 | −59.1 ± 1.7 | −54.0 ± 1.4 | −57.7 ± 1.2 | −56.9 ± 1 |
Firing threshold | −43.3 ± 1.4 | −48.2 ± 3.2 | −46.0 ± 1.7 | −42.9 ± 2.1 | −45.5 ± 1.2 |
Spontaneously active cells, % | 15 | 58 | 25 | 76 | 47 |
Spike amplitude, mV | 58.9 ± 2.0 | 58.2 ± 2.0 | 52.4 ± 3.1 | 56.1 ± 2.1 | 56.4 ± 1.4 |
Spike duration, ms | 2.5 ± 0.3 | 2.6 ± 0.3 | 3.3 ± 0.6 | 3.0 ± 0.3 | 2.9 ± 0.2 |
AHP amplitude, mV | −6.7 ± 0.5 | −7.5 ± 0.8 | −4.5 ± 2.4 | −7.8 ± 0.9 | −6.6 ± 0.7 |
AHP duration, ms | 101.8 ± 23.0 | 47.0 ± 8.6 | 70.5 ± 13.7 | 76.4 ± 13.4 | 73.9 ± 11.2 |
Input resistance, MΩ | 57.1 ± 6.4 | 47.0 ± 6.1 | 35.4 ± 3.0 | 49.9 ± 6.7 | 47.3 ± 4.5 |
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Data in each category represent the mean ± SE values;n is number of neurons. PeriV, peritrigeminal area; PCRt, parvocellular reticular formation; SupV, supratrigeminal area; IntV, intertrigeminal region; RMP, resting membrane potential; AHP, afterhyperpolarization.