Dual mechanisms in the perceptual processing of click train temporal regularity | Zendy

Dennis P. Phillips | Zendy; Rachel N. Dingle | Zendy; Susan E. Hall | Zendy; Moragh Jang | Zendy

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Dual mechanisms in the perceptual processing of click train temporal regularity

Author(s) -

Dennis P. Phillips,

Rachel N. Dingle,

Susan E. Hall,

Moragh Jang

Publication year - 2012

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4728193

Subject(s) - jitter , train , noise (video) , perception , computer science , dual (grammatical number) , wideband , speech recognition , acoustics , mathematics , artificial intelligence , physics , psychology , telecommunications , neuroscience , optics , art , geography , cartography , literature , image (mathematics)

Two experiments measured human sensitivity to temporal jitter in 25-click trains with inter-click intervals (ICIs) between 5 and 100 ms. In a naturalistic experiment using wideband clicks, jitter thresholds were a nonmonotonic function of ICI, peaking for ICIs near 40-60 ms. In a subsequent experiment, clicks were high-passed and presented against a low-frequency noise masker. Jitter threshold vs ICI functions lost the positive slope over short ICIs but retained the negative slope at long ICIs. The same behavior was seen in click rate discrimination tasks. Different processes mediate regularity analysis for click trains with ICIs above and below 40-60 ms.

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