(a)

Brain	Reagents	N A	D A	5-HT
Cortex	Dist. H2O 5.0 mL/kg	40.9 ± 2.3	102.4 ± 3.7	50.3 ± 2.2
	SJZT 500 mg/kg	31.3 ± 1.4	86.2 ± 3.3	34.1 ± 4.9
	SJZT1000 mg/kg	17.3 ± 1.1*	62.8 ± 5.6*	25.9 ± 2.8*
Brain stem	Dist. H2O 5.0 mL/kg	47.9 ± 0.9	131.7 ± 3.4	57.2 ± 3.1
	SJZT 500 mg/kg	41.6 ± 0.3	79.4 ± 1.9*	39.2 ± 0.8*
	SJZT 1000 mg/kg	35.6 ± 0.5	77.8 ± 2.1*	35.1 ± 1.8*

*P < 0.05; mean ± S.E.;  N = 6; peroral, ng/g (wet weight); control group: Dist. H₂O 5.0 mL/kg (B.W.).