A Criterion setting theory of discrimination learning that accounts for anisotropies and context effects

Lages, M. and Treisman, M. (2011) A Criterion setting theory of discrimination learning that accounts for anisotropies and context effects. In: Solomon, J. A. (ed.) Fechner's Legacy in Psychology: 150 Years of Elementary Psychophysics. Brill: Leiden ; Boston, pp. 121-154. ISBN 9789004192201 (doi:10.1163/ej.9789004192201.i-214.54)

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Abstract

We can discriminate departures from the vertical or horizontal more accurately than from other orientations. This may reflect perceptual learning, but the mechanisms behind such learning are not well understood. Here we derive a theory of discrimination learning based on criterion setting theory (CST; Treisman and Williams, 1984), an extension of signal detection theory in which judgment of the current stimulus is partly determined by previous discriminations and context. The CST-based theory of discrimination learning (CST-DL) describes mechanisms which use information from previous acts of discrimination to improve current decision making. CST-DL distinguishes between types of decision criteria and provides an account of anisotropies and context effects affecting discrimination. Predictions from this model are tested in experiments on anisotropies in orientation and depth perception. The results obtained support CST-DL. They also support the conclusion that the account of the

Item Type:Book Sections
Status:Published
Glasgow Author(s) Enlighten ID:Lages, Dr Martin
Authors: Lages, M., and Treisman, M.
College/School:College of Science and Engineering > School of Psychology
Publisher:Brill
ISBN:9789004192201

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