A Weber-like law for perceptual learning

Astle, Andrew T. and Li, Roger W. and Webb, Ben S. and Levi, Dennis M. and McGraw, Paul V. (2013) A Weber-like law for perceptual learning. Scientific Reports, 3 . 1158/1-1158/8. ISSN 2045-2322

[img] PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution Non-commercial No Derivatives.
Download (647kB)

Abstract

What determines how much an organism can learn? One possibility is that the neural factors that limit sensory performance prior to learning, place an upper limit on the amount of learning that can take place. We tested this idea by comparing learning on a sensory task where performance is limited by cortical mechanisms, at two retinal eccentricities. Prior to learning, visual performance at the two eccentricities was either unmatched or equated in two different ways (through spatial scaling or visual crowding). The magnitude of learning was equivalent when initial levels of performance were matched regardless of how performance was equated. The magnitude of learning was a constant proportion of initial performance. This Weber-like law for perceptual learning demonstrates that it should be possible to predict the degree of perceptual improvement and the final level of performance that can be achieved via sensory training, regardless of what cortical constraint limits performance.

Item Type: Article
Schools/Departments: University of Nottingham UK Campus > Faculty of Science > School of Psychology
Depositing User: Johnson, Mrs Alison
Date Deposited: 10 Apr 2014 09:43
Last Modified: 13 Sep 2016 11:36
URI: http://eprints.nottingham.ac.uk/id/eprint/2939

Actions (Archive Staff Only)

Edit View Edit View