Basic membrane and DPSP properties
A. Basic membrane properties
Resting membrane potential (mV) | Action potential | Rheobase (nA) | Input resistance (MΩ) | |||
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Amplitude (mV) | Duration (msec) | Standard ACSF | Mg2+-free ACSF + CNQX | |||
Control | −73.6 ± 1.21_a | 72.4 ± 1.1 | 0.90 ± 0.03 | 0.58 ± 0.05 | 30.5 ± 1.4 | 35.9 ± 3.31_b |
Mutant | −73.6 ± 1.0 | 71.4 ± 0.9 | 0.98 ± 0.04 | 0.54 ± 0.06 | 34.6 ± 2.3 | 47.1 ± 4.1 |
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↵F1_a Mean ± SE. Values for resting membrane potential, action potential parameters, and rheobase were derived from 49 cells from controls and 55 cells from mutants. Data from cells bathed in standard ACSF and Mg2+-free ACSF + CNQX were pooled, because there were no significant differences between groups. Input resistance measures in standard ACSF were obtained from 16 control and 17 mutant cells and in Mg2+-free ACSF + CNQX from 13 control and 11 mutant cells.
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↵F1_b Difference between means from controls and mutants is statistically significant (t = 2.15, df = 22,p = 0.0431).