| The perception of concurrent sound objects in harmonic complexes impairs gap detection. | |
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MedLine Citation:
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PMID: 21463079 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Since the introduction of the concept of auditory scene analysis, there has been a paucity of work focusing on the theoretical explanation of how attention is allocated within a complex auditory scene. Here we examined signal detection in situations that promote either the fusion of tonal elements into a single sound object or the segregation of a mistuned element (i.e., harmonic) that "popped out" as a separate individuated auditory object and yielded the perception of concurrent sound objects. On each trial, participants indicated whether the incoming complex sound contained a brief gap or not. The gap (i.e., signal) was always inserted in the middle of one of the tonal elements. Our findings were consistent with an object-based account in which perception of two simultaneous auditory objects interfered with signal detection. This effect was observed for a wide range of gap durations and was greater when the mistuned harmonic was perceived as a separate object. These results suggest that attention may be initially shared among concurrent sound objects thereby reducing listeners' ability to process acoustic details belonging to a particular sound object. These findings provide new theoretical insight for our understanding of auditory attention and auditory scene analysis. (PsycINFO Database Record (c) 2011 APA, all rights reserved). |
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Authors:
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Ada W S Leung; Pierre Jolicoeur; François Vachon; Claude Alain |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-4 |
Journal Detail:
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Title: Journal of experimental psychology. Human perception and performance Volume: - ISSN: 1939-1277 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-5 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7502589 Medline TA: J Exp Psychol Hum Percept Perform Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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