A comparison of adaptive psychometric procedures based on the theory of optimal experiments and bayesian techniques : Implications for cochlear implant testing

Numerous previous studies have focused on the development of quick and efficient adaptive psychometric procedures. In psychophysics, there is often a model of the psychometric function supported by previous studies for the task of interest. The theory of optimal experiments provides a framework for...

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Bibliographic Details
Published in:Perception & psychophysics 2007-04, Vol.69 (3), p.311-323
Main Authors: REMUS, Jeremiah J, COLLINS, Leslie M
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Bayes Theorem
Biological and medical sciences
Cochlear Implants
Fundamental and applied biological sciences. Psychology
Humans
Models, Biological
Perception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychometrics
Psychophysics
Speech Perception - physiology
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Summary:Numerous previous studies have focused on the development of quick and efficient adaptive psychometric procedures. In psychophysics, there is often a model of the psychometric function supported by previous studies for the task of interest. The theory of optimal experiments provides a framework for utilizing a model of the process to develop quick and efficient sequential-testing strategies for estimating model parameters, making it appropriate for developing adaptive psychophysical-testing methods. In this study, we investigated the application of sequential parameter search strategies based on the theory of optimal experiments and Bayesian adaptive procedures for measuring psychophysical variables. The results presented in this article suggest that more sophisticated psychometric procedures can expedite the measurement of psychophysical variables. Such techniques for quickly collecting psychophysical data may be particularly useful in cochlear implant research, where a large set of psychophysical variables are useful for characterizing the performance of an implanted device. It is to be hoped that further development of these techniques will make psychophysical measurements available to clinicians for tuning and optimizing the speech processors of individual cochlear implant patients.
ISSN:0031-5117
1532-5962
DOI:10.3758/BF03193752