title: Effects of multiple congruent cues on concurrent sound segregation during passive and active listening: an event-related potential (ERP) study.
abstract: In two experiments, we assessed the effects of combining different cues of concurrent sound segregation on the object-related negativity (ORN) and the P400 event-related potential components. Participants were presented with sequences of complex tones, half of which contained some manipulation: one or two harmonic partials were mistuned, delayed, or presented from a different location than the rest. In separate conditions, one, two, or three of these manipulations were combined. Participants watched a silent movie (passive listening) or reported after each tone whether they perceived one or two concurrent sounds (active listening). ORN was found in almost all conditions except for location difference alone during passive listening. Combining several cues or manipulating more than one partial consistently led to sub-additive effects on the ORN amplitude. These results support the view that ORN reflects a combined, feature-unspecific assessment of the auditory system regarding the contribution of two sources to the incoming sound.
authors.affiliation: Institute of Psychology and Cognitive Neuroscience, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary; Budapest University of Technology and Economics, Budapest, Hungary. Electronic address: kocsis.zsuzsanna@ttk.mta.hu.
authors.forename: Zsuzsanna
authors.initials: Z
authors.lastname: Kocsis
authors.affiliation: Institute of Psychology and Cognitive Neuroscience, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary; Institute of Psychology, University of Szeged, Szeged, Hungary.
authors.forename: István
authors.initials: I
authors.lastname: Winkler
authors.affiliation: Institute of Psychology and Cognitive Neuroscience, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary.
authors.forename: Orsolya
authors.initials: O
authors.lastname: Szalárdy
authors.affiliation: Department of Psychology, Cluster of Excellence "Hearing4all", European Medical School, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany; Department of Psychology, University of Leipzig, Leipzig, Germany.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Bendixen
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D000704:Analysis of Variance; D001307:Auditory Perception / Q000502:physiology*; D001931:Brain Mapping; D003463:Cues; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011571:Psychoacoustics; D011930:Reaction Time / Q000502:physiology; D013016:Sound; D055815:Young Adult
keywords: Active and passive listening; Concurrent sound segregation; Multiple congruent cues; Object-related negativity (ORN); P400