title: Neural correlates of auditory stream segregation: an analysis of onset- and change-related responses.
abstract: The temporal order discrimination of target tone pairs is hindered by the presence of flanker tones but is improved when the flanker tones are captured by a separate stream of tones that match the flankers in frequency [Bregman and Rudnicky (1975). J. Exp. Psychol. 1, 263-267]. In an event-related potential (ERP) study with these stimuli, listeners' mismatch negativity (MMN) responses were temporally linked to the position of the changing target tones, irrespective of streaming. In contrast, N1 response latency varied as a function of the perceived grouping of flanker tones established by previous behavioral studies, providing a neurophysiological index of auditory stream segregation.
authors.affiliation: Perceptual Development Laboratory, Boys Town National Research Hospital, 555 North 30th Street, Omaha, Nebraska, 68131 nicholas.smith@boystown.org, suyash@suyash-joshi.com.
authors.forename: Nicholas A
authors.initials: NA
authors.lastname: Smith
authors.affiliation: Perceptual Development Laboratory, Boys Town National Research Hospital, 555 North 30th Street, Omaha, Nebraska, 68131 nicholas.smith@boystown.org, suyash@suyash-joshi.com.
authors.forename: Suyash
authors.initials: S
authors.lastname: Joshi
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D001299:Audiometry; D001306:Auditory Pathways / Q000502:physiology*; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D008297:Male; D010897:Pitch Discrimination; D011930:Reaction Time; D013997:Time Factors; D055815:Young Adult