TABLE 1.Basic electrophysiological properties of BLA neurons
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Late Spiking | Regular Spiking | Strongly Adapting | Fast Spiking | Significant Differences* | |
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n | 32 | 31 | 44 | 15 | |
Resting membrane potential, mV | –71.6 ± 0.9 | –69.8 ± 0.9 | –69.5 ± 1.0 | –64.3 ± 1.2 | LS, RS, SA > FS |
Input resistance, MΩ | 135.8 ± 11.0 | 167.2 ± 21.2 | 138.0 ± 12.2 | 246.5 ± 36.3 | FS > LS; RS, SA |
Rheobase current, pA | 232 ± 21 | 190 ± 17 | 212 ± 18 | 126 ± 24 | LS, SA > FS |
Action potential threshold, mV | –38.6 ± 0.5 | –38.8 ± 0.5 | –38.7 ± 0.4 | –40.1 ± 0.6 | — |
Action potential amplitude, mV | 69.9 ± 1.3 | 68.1 ± 1.4 | 68.3 ± 1.3 | 58.3 ± 1.4 | LS, RS, SA > FS |
Action potential half-width, ms | 1.20 ± 0.05 | 1.23 ± 0.03 | 1.22 ± 0.02 | 0.80 ± 0.08 | LS, RS, SA > FS |
* Significant differences indicated by the use of a two-tailed, unpaired t-test for multiple comparisons after ANOVA (P < 0.05).