Cell type | n | AP threshold (mV) | AP amplitude (mV) | AP rise (ms) | AP decay (ms) | AP half-amp duration (ms) | HAP amplitude (mV) | AP frequency (Hz) |
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Type I | 44 | −41.9 ± 0.7 | 0.2 ± 1.6 | 0.8 ± 0.0 | 1.5 ± 0.1 | 1.6 ± 0.1 | −20.1 ± 0.7 | 20.0 ± 0.9 |
Type II | 17 | −42.3 ± 0.8 | 4.9 ± 2.0 | 0.7 ± 0.1 | 1.0 ± 0.1** | 1.3 ± 0.1* | −24.5 ± 1.6 † | 15.8 ± 2.0 * |
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Abbreviations: AP, action potential; rise, 10–90% rise time; decay, 10–90% decay time; half-amp duration, half-amplitude duration; HAP, hyperpolarizing afterpotential. Values are means ± s.e.m. Differences are significant at:
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↵* P < 0.05
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↵** P < 0.01, Mann-Whitney rank sum test
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↵† P < 0.01, Student's unpaired t test.