Figure 2 shows the EEG power and standard deviations in theta, alpha and beta bands of the alcohol and placebo/pre-drinking conditions for the three studies. There was no significant difference between the alcohol and placebo conditions in Study 1 (F(1,14) = 1.92, p>.05), but the variables were significantly different in Studies 2 and 3 (F(1,14) = 10.22, p<.01 and F(1,9) = 18.20 p<.01, respectively). There was a significant condition × variable interaction for Study 2 (F(1,20) = 4.82, p<.05), but post-hoc comparisons did not reveal significant differences between alcohol and placebo/pre-drinking for any of the variables. The condition x variable interaction was also significant for Study 3 (F(2,15) = 5.04, p<.05), where power was greater in the alcohol than in the placebo/pre-ingestion condition for the alpha and beta power and SD variables (F(1,19) = 5.39, p<.05; F(1,19) = 5.85, p<.05; F(1,19) = 6.68, p<.05; and F(1,19) = 6.92, p<.05 respectively).
