title: Automatic classification of penicillin-induced epileptic EEG spikes.
abstract: Penicillin-induced focal epilepsy is a well-known model in epilepsy research. In this model, epileptic activity is generated by delivering penicillin focally to the cortex. The drug induces interictal electroencephalographic (EEG) spikes which evolve in time and may later change to ictal discharges. This paper proposes a method for automatic classification of these interictal epileptic spikes using iterative K-means clustering. The method is shown to be able to detect different spike waveforms and describe their characteristic occurrence in time during penicillin-induced focal epilepsy. The study offers potential for future research by providing a method to objectively and quantitatively analyze the time sequence of interictal epileptic activity.
authors.affiliation: Department of Electrical and Information Engineering, BOX 4500, FIN-90014 University of Oulu, Finland. jukka.kortelainen@ee.edu.fi
authors.forename: Jukka
authors.initials: J
authors.lastname: Kortelainen
authors.forename: Minna
authors.initials: M
authors.lastname: Silfverhuth
authors.forename: Kalervo
authors.initials: K
authors.lastname: Suominen
authors.forename: Eila
authors.initials: E
authors.lastname: Sonkajarvi
authors.forename: Seppo
authors.initials: S
authors.lastname: Alahuhta
authors.forename: Ville
authors.initials: V
authors.lastname: Jantti
authors.forename: Tapio
authors.initials: T
authors.lastname: Seppanen
mesh_terms: D000465:Algorithms; D000818:Animals; D004569:Electroencephalography / Q000379:methods*; D004828:Epilepsies, Partial / Q000139:chemically induced* / Q000503:physiopathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D010406:Penicillins / Q000633:toxicity*
chemical_list: D010406:Penicillins