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Temporal weighting functions for interaural time and level differences. VI. Effects of pulse rate on modulated envelopes.

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Τίτλος: Temporal weighting functions for interaural time and level differences. VI. Effects of pulse rate on modulated envelopes.
Συγγραφείς: Stecker GC; Center for Hearing Research, Boys Town National Research Hospital, 555 N 30th St, Omaha, Nebraska 68131, USA.; Department of Hearing and Speech Sciences, Vanderbilt University School of Medicine, 1215 21st Avenue South, Nashville, Tennessee 37232, USA., Stecker JMS; Center for Hearing Research, Boys Town National Research Hospital, 555 N 30th St, Omaha, Nebraska 68131, USA.; Department of Hearing and Speech Sciences, Vanderbilt University School of Medicine, 1215 21st Avenue South, Nashville, Tennessee 37232, USA.
Πηγή: The Journal of the Acoustical Society of America [J Acoust Soc Am] 2026 Aug 01; Vol. 160 (2), pp. 1252-1262.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: American Institute of Physics Country of Publication: United States NLM ID: 7503051 Publication Model: Print Cited Medium: Internet ISSN: 1520-8524 (Electronic) Linking ISSN: 00014966 NLM ISO Abbreviation: J Acoust Soc Am Subsets: MEDLINE
Imprint Name(s): Publication: Melville, NY : American Institute of Physics
Original Publication: Lancaster, Pa. [etc.] : American Institute of Physics for the Acoustical Society of America
Ιατρικοί όροι (MeSH): Auditory Perception* , Sound Localization*, Humans ; Time Factors ; Acoustic Stimulation ; Cues ; Auditory Threshold
Περίληψη: Temporal weighting functions were measured for binaural lateralization of amplitude-modulated trains of narrowband clicks. When the envelope was one rise-fall cycle of a 20-Hz sinusoid and the interclick interval was 2 ms, temporal weighting functions revealed strong onset dominance in the form of maximal weight on the initial click, despite its low amplitude (-36 dB) relative to the envelope peak. Onset dominance was greater for lateralization based on interaural time differences compared to interaural level differences (ILDs), and was also reduced when the interclick interval was lengthened to 5 ms. At that rate, ILD weights appeared to follow the sound envelope, suggesting a level-dependent contribution of ILD that was not seen for interaural time differences. The overall results support the view that binaural cues are accessed via a brief temporal readout window aligned to sound onsets and other onset-like events, i.e., rising segments of the amplitude envelope. The process cannot be re-triggered for at least a few milliseconds, so that binaural processing of high-rate sounds is dominated by the overall sound onset, whereas for low-rate sounds, each pulse or cycle serves as its own onset.
(© 2026 Acoustical Society of America.)
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Grant Information: R01 DC011548 United States DC NIDCD NIH HHS; R01 DC016643 United States DC NIDCD NIH HHS
Entry Date(s): Date Created: 20260810 Date Completed: 20260810 Latest Revision: 20260916
Update Code: 20260916
PubMed Central ID: PMC13574270
DOI: 10.1121/10.0044579
PMID: 42573277
Βάση Δεδομένων: MEDLINE
Περιγραφή
ISSN:1520-8524
DOI:10.1121/10.0044579