title: Long duration periodic changes in excitability of penicillin spike foci: cyclical spike driving.
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D002415:Cats; D004569:Electroencephalography; D004594:Electrophysiology; D008027:Light; D010406:Penicillins / Q000494:pharmacology*; D012640:Seizures
chemical_list: D010406:Penicillins