Effects of multiple congruent cues on concurrent sound segregation during passive and active listening: An event-related potential (ERP) study

Zsuzsanna Kocsis, István Winkler, Orsolya Szalárdy, Alexandra Bendixen

Research output: Contribution to journalArticle

10 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)20-33
Number of pages14
JournalBiological Psychology
Volume100
Issue number1
DOIs
Publication statusPublished - Jul 2014

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Keywords

  • Active and passive listening
  • Concurrent sound segregation
  • Multiple congruent cues
  • Object-related negativity (ORN)
  • P400

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology

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