Please use this identifier to cite or link to this item:
Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Dissociable Processes for Orientation Discrimination Learning and Contextual Illusion Magnitude
Author(s): Wilks, Charlotte Elizabeth Holmes
Rees, Geraint
Schwarzkopf, Dietrich Samuel
Keywords: General Biochemistry, Genetics and Molecular Biology
General Agricultural and Biological Sciences
General Medicine
Issue Date: 2014
Citation: Wilks CEH, Rees G & Schwarzkopf DS (2014) Dissociable Processes for Orientation Discrimination Learning and Contextual Illusion Magnitude. PLoS ONE, 9 (7), Art. No.: e103121.
Abstract: Previous research suggests an inverse relationship between human orientation discrimination sensitivity and tilt illusion magnitude. To test whether these perceptual functions are inherently linked, we measured both orientation discrimination sensitivity and the magnitude of the tilt illusion before and after participants had been trained for three days on an orientation discrimination task. Discrimination sensitivity improved with training and this improvement remained one month after the initial learning. However, tilt illusion magnitude remained unchanged before and after orientation training, at either trained or untrained orientations. Our results suggest that orientation discrimination sensitivity and illusion magnitude are not inherently linked. They also provide further evidence that, at least for the training periods we employed, perceptual learning of orientation discrimination may involve high-level processes.
DOI Link: 10.1371/journal.pone.0103121
Rights: © 2014 Wilks et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Licence URL(s):

Files in This Item:
File Description SizeFormat 
journal.pone.0103121.PDFFulltext - Published Version2.71 MBAdobe PDFView/Open

This item is protected by original copyright

A file in this item is licensed under a Creative Commons License Creative Commons

Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact providing details and we will remove the Work from public display in STORRE and investigate your claim.