title: Identification of EEG patterns occurring in anesthesia by means of autoregressive parameters.
abstract: In EEG analysis an automatic pattern recognition is of interest. In this paper the usefulness of autoregressive parameters to classify EEG segments recorded during anesthesia is examined. Assuming that the AR parameters are multivariate normally distributed, parametric methods of discriminant analysis can be applied. The results show that AR parameters have high discriminating power and that the lowest error classification rate (smaller than 3%) is obtained by using quadratic discriminant functions. Consequently autoregressive parameters are efficient for classifying EEG segments into general stages of anesthesia.
authors.affiliation: Department of Anesthesiology, Hannover Medical School, Federal Republic of Germany.
authors.forename: R
authors.initials: R
authors.lastname: Bender
authors.forename: B
authors.initials: B
authors.lastname: Schultz
authors.forename: A
authors.initials: A
authors.lastname: Schultz
authors.forename: I
authors.initials: I
authors.lastname: Pichlmayr
mesh_terms: D000328:Adult; D000465:Algorithms; D000768:Anesthesia, General / Q000295:instrumentation; D004569:Electroencephalography / Q000145:classification / Q000187:drug effects* / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012984:Software