title: P300 from a single-stimulus paradigm: auditory intensity and tone frequency effects.
abstract: The P300 component of the event-related brain potential (ERP) was elicited with auditory stimuli in two different tasks. The oddball paradigm presented both target and standard stimuli; the single-stimulus paradigm presented a target but no standard tone stimulus, with the inter-target interval the same as that for the oddball condition. Experiment 1 manipulated stimulus intensity and Experiment 2 manipulated tone stimulus frequency, with the relative target probability maintained 0.20 for both tasks. P300 amplitude and latency were highly similar for the oddball and single-stimulus procedures in both experiments across independent variables. The findings suggest that the single-stimulus paradigm may prove useful in experimental and applied contexts that require very simple ERP task conditions.
authors.affiliation: Department of Neuropharmacology, Scripps Research Institute, La Jolla, CA 92037, USA.
authors.forename: M
authors.initials: M
authors.lastname: Cass
authors.forename: J
authors.initials: J
authors.lastname: Polich
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D004192:Discrimination, Psychological / Q000502:physiology; D004569:Electroencephalography; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011571:Psychoacoustics; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology