Fig. 2.
Properties of the GABA receptors mediating a tonic current in KCs. A: example traces and pooled data (n = 4) showing that the GABAA receptor antagonist bicuculline (Bic.) does not inhibit the tonic current. B: an example Im trace used for noise analysis showing the increase in current variance evoked by GABA application. C: an example plot of tonic current variance (σ2) vs. amplitude (I), fit to yield a value for single-channel current (i), from which single-channel conductance (γ) was calculated. *P < 0.05, statistical significance.