TABLE 2.
Intrinsic cell properties
| All (29) | Type-A (13) | Type-B (13) | P | |
|---|---|---|---|---|
| Rm (MΩ) | 74.7 ± 10.5 | 123.0 ± 11.0 | 21.8 ± 2.5 | ** |
| VREST (mV) | −59.4 ± 1.3 | −59.3 ± 1.5 | −61.4 ± 1.9 | >0.05 |
| Spike amplitude (mV) | 83.6 ± 2.6 | 83.6 ± 4.1 | 84.2 ± 4.1 | >0.05 |
| Spike width (ms) | 0.86 ± 0.04 | 0.99 ± 0.05 | 0.74 ± 0.03 | ** |
| Primary f/I (Hz/nA) | 48.2 ± 7.0 | 63.3 ± 8.5 | 17.0 ± 3.1 | ** |
| Spike adaptation (%) | −4.8 ± 9.5 | +17.9 ± 8.9 | −52.4 ± 13.0 | ** |
| VAHP (mV) | −66.2 ± 0.8 | −68.4 ± 1.0 | −65.3 ± 1.3 | >0.05 |
| AmplitudeAHP (mV) | 5.6 ± 0.9 | 8.7 ± 1.3 | 2.7 ± 0.6 | ** |
| DurationAHP (ms) | 28.6 ± 1.7 | 32.4 ± 3.2 | 25.1 ± 1.2 | * |
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Significant differences between type-A and type-B cells are indicated in the right-most column
-
↵* P < 0.05;
-
↵** P < 0.001).
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Parentheses enclose number of cells. The last three rows refer to features of the slow afterhyperpolarization (AHP) defined in Fig. 5. These were measured in 11 type-A cells, 11 type-B cells, and 3 unclassified cells. Values are means±SD.