Alcohol also produced significant dose-related impairment on all of the performance measures when data were analyzed as peak scores. Figure 4 illustrates peak data for the balance task, the DSST and 2 hour delayed word recall. There was an overall trend for FHP women to be less impaired on the balance task than FHN women (p<0.07); as shown in Figure 4, FHP women were less impaired by alcohol than FHN women, but there were no differences between the two groups when placebo was administered and there were no differences as a function of menstrual cycle phase. Figure 4 also shows that alcohol impaired DSST performance and delayed word recall, but there were no significant differences as a function of menstrual cycle phase or between the two groups. Similar effects were observed for all of the other performance measures and total Observer-rating scores.