Sequential effects on the detectability of a tone added to a multitone masker.
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.
Cao
Xiang
X
Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. xiangcao@seas.upenn.edu
Huang
Rong
R
Richards
Virginia M
VM
D000328:Adult; D001309:Auditory Threshold; D006801:Humans; D010470:Perceptual Masking; D017603:Signal Detection, Psychological; D013997:Time Factors; D055815:Young Adult