title: Comparison of classification methods for P300 brain-computer interface on disabled subjects.
abstract: We report on tests with a mind typing paradigm based on a P300 brain-computer interface (BCI) on a group of amyotrophic lateral sclerosis (ALS), middle cerebral artery (MCA) stroke, and subarachnoid hemorrhage (SAH) patients, suffering from motor and speech disabilities. We investigate the achieved typing accuracy given the individual patient's disorder, and how it correlates with the type of classifier used. We considered 7 types of classifiers, linear as well as nonlinear ones, and found that, overall, one type of linear classifier yielded a higher classification accuracy. In addition to the selection of the classifier, we also suggest and discuss a number of recommendations to be considered when building a P300-based typing system for disabled subjects.
authors.affiliation: Laboratorium voor Neuro- en Psychofysiologie, K.U.Leuven, Campus Gasthuisberg, Leuven, Belgium. nikolayv.manyakov@med.kuleuven.be
authors.forename: Nikolay V
authors.initials: NV
authors.lastname: Manyakov
authors.forename: Nikolay
authors.initials: N
authors.lastname: Chumerin
authors.forename: Adrien
authors.initials: A
authors.lastname: Combaz
authors.forename: Marc M
authors.initials: MM
authors.lastname: Van Hulle
mesh_terms: D000328:Adult; D000368:Aged; D000690:Amyotrophic Lateral Sclerosis / Q000503:physiopathology / Q000534:rehabilitation; D003147:Communication Disorders / Q000209:etiology / Q000503:physiopathology / Q000534:rehabilitation*; D006233:Persons with Disabilities / Q000534:rehabilitation; D004569:Electroencephalography / Q000379:methods*; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D005260:Female; D006801:Humans; D020244:Infarction, Middle Cerebral Artery / Q000503:physiopathology / Q000534:rehabilitation; D008297:Male; D008875:Middle Aged; D009069:Movement Disorders / Q000209:etiology / Q000503:physiopathology / Q000534:rehabilitation*; D058765:Neurofeedback / Q000379:methods* / Q000502:physiology; D013345:Subarachnoid Hemorrhage / Q000503:physiopathology / Q000534:rehabilitation; D014584:User-Computer Interface