title: Circling behavior and stereotypy induced by intranigral opiate microinjections.
mesh_terms: D000698:Analgesia; D000818:Animals; D001519:Behavior / Q000187:drug effects*; D004723:Endorphins / Q000494:pharmacology; D006220:Haloperidol / Q000494:pharmacology; D006801:Humans; D006892:Hydroxydopamines / Q000494:pharmacology; D007267:Injections; D008297:Male; D009021:Morphine Dependence / Q000503:physiopathology; D009292:Narcotic Antagonists / Q000494:pharmacology; D009294:Narcotics / Q000494:pharmacology*; D051381:Rats; D013239:Stereotyped Behavior / Q000187:drug effects*; D013378:Substantia Nigra / Q000502:physiology
chemical_list: D004723:Endorphins; D006892:Hydroxydopamines; D009292:Narcotic Antagonists; D009294:Narcotics; D006220:Haloperidol