Ethanol produced similar results on PLI values collected following the infrequent tone in the rats. Reductions in PLI were found in frontal cortical sites (FCTX) in the delta (F=4.58, df=1,45, p<0.04), theta (F=5.32, df=1,45, p<0.025), alpha (F=5.3, df=1,45, p<0.025), beta (F= 27.3, df=1,45, p<0.0001) and gamma (F=6.5, df=1,45, p<0.013) frequency ranges in response to alcohol as compared to saline. In contrast, in the dorsal hippocampus (DHPC) and amygdala (AMYG), alcohol produced significant decreases in PLI only in the beta frequencies in the AMYG (AMYG: F=4.28, df=1,45, p<0.036). Grand averages of the PLI values for the entire group of rats (n = 46) for the ethanol and placebo condition for the infrequent tone are presented in Figure 5. Figure 3b gives the mean (± SE) values for the significant PLI findings for the three electrode locations for the ethanol and saline condition. Significant differences from ethanol and placebo conditions, for the infrequent tone, were found for phase difference lock index (PDLI) from electrode pairs, FCTX and AMYG, and FCTX and DHPC. Reductions in phase locking at 60 minutes following ethanol were
