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  Investigating the buildup of precedence effect using reflection masking

Hartcher-O‘Brien, J., & Buchholz, M. (2006). Investigating the buildup of precedence effect using reflection masking. Poster presented at First Joint Meeting of the Acoustical Societies of America and Japan, Honolulu, HI, USA. doi:10.1121/1.4787437.

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Hartcher-O‘Brien, J1, Author              
Buchholz, M, Author
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1External Organizations, ou_persistent22              

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 Abstract: The auditory processing level involved in the build‐up of precedence [Freyman et al., J. Acoust. Soc. Am. 90, 874–884 (1991)] has been investigated here by employing reflection masked threshold (RMT) techniques. Given that RMT techniques are generally assumed to address lower levels of the auditory signal processing, such an approach represents a bottom‐up approach to the buildup of precedence. Three conditioner configurations measuring a possible buildup of reflection suppression were compared to the baseline RMT for four reflection delays ranging from 2.5–15 ms. No buildup of reflection suppression was observed for any of the conditioner configurations. Buildup of template (decrease in RMT for two of the conditioners), on the other hand, was found to be delay dependent. For five of six listeners, with reflection delay=2.5 and 15 ms, RMT decreased relative to the baseline. For 5‐ and 10‐ms delay, no change in threshold was observed. It is concluded that the low‐level auditory processing involved in RMT is not sufficient to realize a buildup of reflection suppression. This confirms suggestions that higher level processing is involved in PE buildup. The observed enhancement of reflection detection (RMT) may contribute to active suppression at higher processing levels.

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 Dates: 2006-102006-11
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: BibTex Citekey: 6548
DOI: 10.1121/1.4787437
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Title: First Joint Meeting of the Acoustical Societies of America and Japan
Place of Event: Honolulu, HI, USA
Start-/End Date: 2006-11-28 - 2006-12-02

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Title: The Journal of the Acoustical Society of America
  Other : JASA
Source Genre: Journal
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Publ. Info: Woodbury, NY : Acoustical Society of America through the American Institute of Physics
Pages: - Volume / Issue: 120 (5) Sequence Number: - Start / End Page: 3083 Identifier: ISSN: 1520-9024
CoNE: https://pure.mpg.de/cone/journals/resource/991042754070048