Fig. 3. (A) Basal and stimulated in vitro CRH release by telencephalic tissues. Tissues were stimulated for 30 min with 5x10^–6 mol l^–1 norepinephrine (NE) or 5x10^–6 mol l^–1 serotonin (5-HT). (B) Maximally stimulated in vitro CRH release by telencephalic tissue stimulated (grey bars) with 5x10^–6 mol l^–1 norepinephrine (NE) or 56 mmol l^–1 K⁺. Before stimulation, tissues were superfused with control medium or with medium containing LPS (50 µg LPS ml^–1).