Document Detail


Measuring the strength of auditory fusion for synchronously and nonsynchronously fluctuating narrow-band noise pairs.
MedLine Citation:
PMID:  8445123     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This experiment examines the "strength" of auditory fusion for narrow-band noise pairs. Each pair of noise bands consisted of a target band and a flanker band presented simultaneously. The temporal envelopes of the noise bands within a pair fluctuated either in synchrony (synchronous condition) or not in synchrony (nonsynchronous condition). Each noise-band pair was alternated rapidly with a noise band (captor band) presented alone. The duration of the silent period between a noise-band pair and a captor band [i.e., onset-to-onset interval (OTO)] was decreased by listeners until auditory fusion of the pair was disrupted by capturing the target band into a sequential-stream with the captor band. Results showed that listeners required significantly shorter OTOs to capture the target bands from the synchronous pairs than from the nonsynchronous pairs, suggesting that strength of auditory fusion was greater for the noise bands that fluctuated in synchrony than for those that did not. The results of this experiment are discussed relative to hypotheses based on auditory stream segregation to explain auditory phenomena such as comodulation detection difference, modulation detection interference, and comodulation masking release.
Authors:
P W Rappold; L Mendoza; M J Collins
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  93     ISSN:  0001-4966     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  1993 Feb 
Date Detail:
Created Date:  1993-04-02     Completed Date:  1993-04-02     Revised Date:  2006-12-27    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1196-9     Citation Subset:  IM    
Affiliation:
Department of Speech Pathology and Audiology, University of South Alabama, Mobile 36688.
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MeSH Terms
Descriptor/Qualifier:
Acoustics
Adult
Audiometry, Pure-Tone
Auditory Perception*
Auditory Threshold
Female
Humans
Male
Middle Aged
Noise*

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