Sequential Effects on the Detectability of a Tone Added to a Multitone Masker
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Abstract
The detectability of a tone added to a masker is superior when the detection trial is preceded by the masker than the signal-plus-masker. This auditory enhancement can withstand long temporal gaps between the precursor and the trial, suggesting that for yes/no trials sensitivity may depend on the stimulus presented in the prior trial. The results from an experiment examining the detectability of a 1000-Hz tone added to 6-tone maskers confirmed sequential effects on sensitivity. The values of d' were higher when the prior trial was a no-signal (masker alone) trial compared to a signal (signal-plus-masker) trial.
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Suggested Citation: Cao, X., Huang, R. and Richards, V.M. (2009). "Sequential effects on the detectability of a tone added to a multitone masker." JASA Express Letters 125 (1). © 2009 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in JASA Express Letters and may be found at http://dx.doi.org/10.1121/1.3040027