Based on the time course analyses, alcohol impaired all of the performance measures and the total Observer Rating score as indicated by main effects of Dose [Fs >4.12, Ps<0.04], Time [Fs>2.95, Ps<0.04], and/or Dose × Time interactions [Fs>2.98, Ps<0.03]. For all but one of the performance tasks, there were no differences on performance between the luteal and follicular phases or between FHP and FHN women. However, Figure 3 shows that performance on the balance task (a measure of motor coordination) was significantly more impaired during the luteal phase compared to the follicular phase [Phase effect; F(1,43)=6.42, P<0.02], in both groups of women and that FHP women recovered more rapidly than FHN women [Group × Time interaction; F(5,215)=2.38, p<0.05].
