FIG. 10.

Neurons with inhibitory combination-sensitive responses had a wide range of resting membrane potentials and many showed strong hyperpolarization. A: maximal averaged poststimulus depolarization and hyperpolarization for each inhibited neuron, in response to low-frequency sweeps. B: maximal averaged poststimulus depolarization and hyperpolarization for each inhibited neuron, in response to high-frequency sweep. The grayed area indicates ±2 mV that approximates the 95% CLs for each neuron. Only values exceeding the 95% CLs were considered to be significant depolarizations and hyperpolarizations. In A, 8 of 12 diamonds (depolarizations) and 4 of 24 filled squares (hyperpolarizations) that touched the ±2-mV line exceeded the 95% CL. In B, 5 of 9 diamonds and 5 or 12 filled squares that touched the ±2-mV line exceeded the 95% CLs. Data in A and B show that amplitude of transient membrane potential changes was not related to resting membrane potential.