Membrane Property | Control | Bicuculline* |
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Spike amplitude, mV | 78.1 ± 0.8 (37) | 78.5 ± 0.7 (39) |
Membrane potential, mV† | −67.8 ± 1.0 (35) | −70.7 ± 0.8 (37) |
Input resistance, MΩ‡ | 1.7 ± 0.1 (34) | 1.2 ± 0.2 (35) |
Time constant, ms‡ | 6.3 ± 0.3 (34) | 4.3 ± 0.3 (35) |
Rheobase, nA‡ | 13.4 ± 1.2 (35) | 18.1 ± 0.9 (37) |
AHP amplitude, mV† | 4.0 ± 0.4 (31) | 3.2 ± 0.3 (34) |
AHP duration, ms | 72.1 ± 4.0 (31) | 69.0 ± 3.2 (34) |
AHP half-width, ms | 29.0 ± 2.5 (31) | 25.9 ± 1.9 (34) |
AHP half-decay-width, ms | 19.7 ± 1.8 (31) | 17.2 ± 2.0 (34) |
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Values are means ± SE. Numbers in parentheses indicate the number of motoneurons sampled. AHP, afterhyperpolarization.
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↵* These measurements were made during atonia following the injection of 0.25 μl of a solution of bicuculline (10 mM in saline) into the nucleus pontis oralis;
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↵† P < 0.05;
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↵‡ P < 0.01.