Figure 9.
Behavioral immunization blocks inescapable stress (IS)-induced impairment of dorsal raphe nucleus (DRN) serotonin (5-HT) cell firing with 150 nM ipsapirone. Data are expressed as mean percent inhibition ± SEM. Mean percent inhibition was different among stress groups (p < 0.05). *Mean percent inhibition of DRN 5-HT cell firing was significantly different in rats that received homecage treatment followed by IS (HC/IS) as compared to rats that received no stress (HC/HC) and behavioral immunization (ES/IS) (p < 0.05).