Data are reported as the mean ± S.E.M value. The dependent measures were weight of ethanol, water and different tastants consumed, ethanol dose (g/kg per day) consumed, preference ratio for ethanol and for the different tastants. When appropriate, a trial was included as a repeated-measures factor. To evaluate the differences between groups, analysis of variance (two-way ANOVA and one-way ANOVA with Post-hoc Bonferroni Multiple Comparison) were used. The statistics software program GraphPad Prizm (Jandel Scientific, Costa Madre, CA) was used throughout.