Fig. 5.

LPS-induced short-term decrease of hippocampal mean delta frequency. (A) Hippocampal delta power spectral density visualized for control saline injection (light blue), 1.5 h after LPS injection (orange), 3 h (grey), 4 h (yellow), 6 h (blue), 8 h (green) and 24 h (dark blue). (B) Peak and (C) mean hippocampal delta frequency (Hz) for controls and LPS injected animals. (D) Relative hippocampal delta amplitude measured with the ratio of baseline over injection recording. Bonferroni post hoc test ^*P < .05. Error bars, mean ± s.e.m.