Table 1: Ethanol self-administration training procedure.

TimeProcedure

3 days0.2% saccharin; 1 lever (limited home cage water access)
2 days0.2% saccharin; 1 lever
2 days2% ethanol + 0.2% saccharin; 1 lever
8 days5% ethanol + 0.2% saccharin versus inactive; 2-lever choice
4 days5% ethanol versus inactive; 2-lever choice
2 days8% ethanol + 0.2% saccharin versus inactive; 2-lever choice
2 days2% ethanol versus inactive; 2-lever choice
4 days10% ethanol + 0.2% saccharin versus inactive; 2-lever choice
16 days10% ethanol versus inactive; 2-lever choice