Untrained listeners experience difficulty detecting interaural correlation changes in narrowband noises

Interaural correlation change detection was measured in untrained normal-hearing listeners. Narrowband (10-Hz) noises were varied by center frequency (CF; 500 or 4000 Hz) and diotic level roving (absent or present). For the 500-Hz CF, 96% of listeners could achieve threshold (79.4% correct at the ea...

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Bibliographic Details
Published inThe Journal of the Acoustical Society of America Vol. 138; no. 1; p. EL120
Main Authors Goupell, Matthew J, Barrett, Mary E
Format Journal Article
LanguageEnglish
Published United States 01.07.2015
Subjects
Acoustic Stimulation - methods
Adolescent
Adult
Analysis of Variance
Auditory Threshold - physiology
Cues
Female
Humans
Male
Noise
Psychoacoustics
Young Adult
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Summary:Interaural correlation change detection was measured in untrained normal-hearing listeners. Narrowband (10-Hz) noises were varied by center frequency (CF; 500 or 4000 Hz) and diotic level roving (absent or present). For the 500-Hz CF, 96% of listeners could achieve threshold (79.4% correct at the easiest testing level) if roving was absent, but only 36% of listeners could if level roving was present. No one could achieve threshold at the 4000-Hz CF, unlike trained listeners in the literature. The results raise questions about how individual differences affect learning and generalization of monaural and binaural cues related to interaural correlation detection.
ISSN:1520-8524
DOI:10.1121/1.4923014