title: A study of task relevance and novelty for the P3a component.
authors.affiliation: Department of Neurology, Dokkyo University School of Medicine, Tochigi, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Hirata
authors.forename: A
authors.initials: A
authors.lastname: Hozumi
authors.forename: H
authors.initials: H
authors.lastname: Tanaka
mesh_terms: D000161:Acoustic Stimulation; D000368:Aged; D001307:Auditory Perception / Q000502:physiology*; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology