the unilateral injection of putative gaba agonists , muscimol , baclofen , imidazole acetic acid and gaba into the caudal area of substantia nigra ( sn , zona reticulata ) induced immediately a contralateral turning , whereas the antogonists picrotoxin and bicuculline methiodide induced ipsilateral turning .
C0004609
baclofen
C0016904
gaba