Mechanisms of perceptual learning

Zhong-Lin Lu; Barbara Anne Dosher

doi:10.1556/lp.1.2009.1.3

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Learning & Perception

Volume/Issue:: Volume 1: Issue 1

Mechanisms of perceptual learning

Authors:

Zhong-Lin Lu

Zhong-Lin Lu Department of Psychology, University of Southern California, Los Angeles, CA, USA
Department of Psychology, SGM 501, University of Southern California, Los Angeles, CA, 90089-1061, USA

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and

Barbara Anne Dosher

Barbara Anne Dosher Department of Cognitive Sciences, University of California, Irvine, CA, USA

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Pages:: 19–36

Online Publication Date:: 01 Jun 2009

Publication Date:: 01 Jun 2009

Article Category:: Journal Article

DOI:: https://doi.org/10.1556/lp.1.2009.1.3

Keywords:: perceptual template model; stimulus enhancement; external noise exclusion; multiplicative noise reduction

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Abstract

What is learned in perceptual learning? How does perceptual learning change the perceptual system? We investigate these questions using a systems analysis of the perceptual system during the course of perceptual learning using psychophysical methods and models of the observer. Effects of perceptual learning on an observer's performance are characterized by external noise tests within the framework of noisy observer models. We find evidence that two independent mechanisms, external noise exclusion and stimulus enhancement support perceptual learning across a range of tasks. We suggest that both mechanisms may reflect re-weighting of stable early sensory representations.

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Learning & Perception

Print ISSN:: 1789-3186

Online ISSN:: 2060-9175

Learning & Perception
Language	English
Size
Year of Foundation	2009
Publication Programme	ceased
Volumes per Year
Issues per Year
Publisher	Akadémiai Kiadó
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	1789-3186 (Print)
ISSN	2060-9175 (Online)