Fig. 9

Nissl staining in the amygdala. a Well-expressed Nissl staining in the control group. b Moderate-expressed Nissl staining in the R. vomitoria crude extract pretreatment group. c Less-expressed Nissl staining in the PTZ group. d Well-expressed Nissl staining in the R. vomitoria phenol extract pretreatment group. e Well-expressed Nissl in the sodium valproate pretreatment group. Black arrows indicate dense staining, and black arrowheads indicate weak staining. Cresyl violet, ×400