Parameters obtained by fitting observations of Gm at 50 mM Cl−, Cl−-free conditions, or with 9-AC to Eq. 6
| AP firing frequency | A2 | τ2 (APs) | β (APs) |
| µS/cm2 | |||
| 50 mM Cl− (n = 9) | 2,335 ± 248 | 2,559 ± 204 | 227 ± 29 |
| Cl− free (n = 11) | 1,601 ± 196 | 2,135 ± 189 | 206 ± 18 |
| 127 mM Cl− + 9-AC + TTX (n = 13) | 1,558 ± 157 | 2,895 ± 237 | 251 ± 18 |
| AP firing frequency | A2 | τ2 (APs) | β (APs) |
| µS/cm2 | |||
| 50 mM Cl− (n = 9) | 2,335 ± 248 | 2,559 ± 204 | 227 ± 29 |
| Cl− free (n = 11) | 1,601 ± 196 | 2,135 ± 189 | 206 ± 18 |
| 127 mM Cl− + 9-AC + TTX (n = 13) | 1,558 ± 157 | 2,895 ± 237 | 251 ± 18 |
All data were obtained with 15-Hz AP trains. Experimental observations of Gm in AP-firing fibers at 50 mM Cl−, Cl−-free conditions, and with both 100 µM 9-AC and 10 nM TTX. Under these three conditions, Gm could only be fitted to Eq. 6 because phase 1 was not observed. A2, τ2, and β are the same as described in Table II. The values in the A2 column were significantly different from observations at 127 mM Cl− at the corresponding 15-Hz AP trains. All data have been presented as means ± SEM.