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Journal ArticleDOI

Transformed Up‐Down Methods in Psychoacoustics

H. Levitt
- 01 Feb 1971 - 
- Vol. 49, Iss: 2, pp 467-477
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TLDR
A broad class of up‐down methods used in psychoacoustics with due emphasis on the related problems of parameter estimation and the efficient placing of observations is described, including examples where conventional techniques are inapplicable.
Abstract
During the past decade a number of variations in the simple up‐down procedure have been used in psychoacoustic testing. A broad class of these methods is described with due emphasis on the related problems of parameter estimation and the efficient placing of observations. The advantages of up‐down methods are many, including simplicity, high efficiency, robustness, small‐sample reliability, and relative freedom from restrictive assumptions. Several applications of these procedures in psychoacoustics are described, including examples where conventional techniques are inapplicable.

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Citations
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Journal ArticleDOI

Discrimination of Voice Pitch and Vocal-Tract Length in Cochlear Implant Users.

TL;DR: It is confirmed that CI listeners’ voice perception deficit goes beyond poor perception of F0, and a potential common explanation not only for a number of deficits observed in CI listeners, such as voice identification and gender categorization, but also for competing speech perception.
Journal ArticleDOI

Studies in auditory timing: 2. Rhythm patterns.

TL;DR: Listeners discriminated between 6-tone rhythmic patterns that differed only in the delay of the temporal position of one of the tones, suggesting that different models of performance are needed to explain behavior at the different tempos.
Journal ArticleDOI

The effects of age and hearing loss on interaural phase difference discrimination.

TL;DR: The results suggest that age negatively affects the binaural processing of envelope and TFS at some frequencies independently of SNHL, and supports the idea that SNHL affects TFS processing independently to age.
Journal ArticleDOI

Effects of contrast on smooth pursuit eye movements.

TL;DR: The smooth pursuit motor response shows the same kind of slowing at low contrast that was demonstrated in previous studies on perception.
Journal ArticleDOI

Effects of contrast and spatial frequency on vernier acuity

TL;DR: Vernier thresholds were affected by both grating contrast and spatial frequency, and most of the data are consistent with the predictions of Wilson's [(1986) Vision Res. 26, 453-469] model.
References
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Journal ArticleDOI

A Stochastic Approximation Method

TL;DR: In this article, a method for making successive experiments at levels x1, x2, ··· in such a way that xn will tend to θ in probability is presented.
Journal ArticleDOI

The Advanced Theory of Statistics

Maurice G. Kendall, +1 more
- 01 Apr 1963 - 
Journal ArticleDOI

The staircrase-method in psychophysics.

TL;DR: The use of the staircase-method is illustrated, its relative merits and demerits are discussed, and a modification is described which overcomes certain of the disadvantages of the method.
Journal ArticleDOI

PEST: Efficient Estimates on Probability Functions

TL;DR: In this article, an adaptive procedure for rapid and efficient psychophysical testing is described, with maximally efficient trial-by-trial sequential decisions at each stimulus level, in a sequence which tends to converge on a selected target level.