Fig. 5.

The effects of ethanol on the EEG. The EEG that follows placebo could be distinguished clearly from that after the ingestion of a low dose of alcohol by most of the measures. The measures that significantly differentiated ethanol from placebo are illustrated in this figure. White bars, Placebo;black bars, ethanol; lined white bars, placebo surrogates; lined black bars, ethanol surrogates. Three of five linear measures were able to distinguish ethanol from placebo. Among the nonlinear measures, 16 of 25 were significant. *p < 0.01; **p < 0.001; ***p < 0.0001; paired ttests.