chemical lesioning of the 5-hydroxytryptamine neurones in the brain with 5,7-dihydroxytryptamine ( 200 micrograms i.c.v. , 14 or 21 days previously ) resulted in an enhanced behavioral response following administration of the 5-hydroxytryptamine receptor agonist 5-methoxy-n , n-dimethyltryptamine ( 2.5 mg/kg ) .
C0006104
brain
C0004927
behavioral