EtOH potentiation of spontaneous IPSC frequency is not blocked by propranolol. A, representative traces showing the potentiating effects of 80 mM EtOH on the frequency of sIPSCs under control conditions and after pretreatment with 10 μM propranolol. B, cumulative probability histograms from the recordings illustrated in A demonstrating a significant effect of EtOH on the frequency (p < 0.01), but not amplitude of sIPSCs under control conditions and after propranolol pretreatment, as determined by Kolmogorov-Smirnov tests. C, bar graph summarizing the mean effect of EtOH, propranolol, and EtOH + propranolol on sIPSC frequency, amplitude, and decay. * indicates significant differences from control, p < 0.05.