Repeated stress decreased firing rate and cyclicity of LAT neurons in females. (A) Single LAT neurons were recorded from male and female rats. (B) The firing rate of LAT neurons was decreased after repeated stress in female rats, but was increased by repeated stress in male rats (left, mean + 95% confidence interval (C.I.); right, log10 transformed data mean ± s.e.m.). (C) The firing rate of LAT neurons was lower during proestrus in control rats. But there was no difference between diestrus and proestrus after repeated stress (left, mean + 95% C.I.; right, log10 transformed data mean ± s.e.m.). (D) The cyclicity index was decreased after repeated stress. *p < 0.05 Holm-Sidak’s multiple comparisons test after 2-way ANOVA.