| Effects of inducer continuity on auditory stream segregation: comparison of physical and perceived continuity in different contexts. | |
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MedLine Citation:
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PMID: 22087920 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The factors influencing the stream segregation of discrete tones and the perceived continuity of discrete tones as continuing through an interrupting masker are well understood as separate phenomena. Two experiments tested whether perceived continuity can influence the build-up of stream segregation by manipulating the perception of continuity during an induction sequence and measuring streaming in a subsequent test sequence comprising three triplets of low and high frequency tones (LHL-[ellipsis (horizontal)]). For experiment 1, a 1.2-s standard induction sequence comprising six 100-ms L-tones strongly promoted segregation, whereas a single extended L-inducer (1.1 s plus 100-ms silence) did not. Segregation was similar to that following the single extended inducer when perceived continuity was evoked by inserting noise bursts between the individual tones. Reported segregation increased when the noise level was reduced such that perceived continuity no longer occurred. Experiment 2 presented a 1.3-s continuous inducer created by bridging the 100-ms silence between an extended L-inducer and the first test-sequence tone. This configuration strongly promoted segregation. Segregation was also increased by filling the silence after the extended inducer with noise, such that it was perceived like a bridging inducer. Like physical continuity, perceived continuity can promote or reduce test-sequence streaming, depending on stimulus context. |
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Authors:
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Nicholas R Haywood; Brian Roberts |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 130 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-17 Completed Date: 2012-04-04 Revised Date: 2012-04-06 |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 2917-27 Citation Subset: IM |
Affiliation:
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Psychology, School of Life and Health Sciences, Aston University, Birmingham B4 7ET, United Kingdom. nhaywood@gmail.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Analysis of Variance Audiometry Auditory Pathways / physiology* Humans Noise / adverse effects Perceptual Masking Pitch Perception* Time Factors |
| Comments/Corrections | |
Erratum In:
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J Acoust Soc Am. 2012 Feb;131(2):1659 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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