Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2017 Jan 9;7:39968. doi: 10.1038/srep39968

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(A) Correlations between magnitudes of the illusions across participants (Spearman correlation). Note that 1) the correlations between geometrical illusions was on average higher than correlations between geometrical illusions and contrast illusion; and 2) the strongest correlation was found between the Muller-Lyer and Ebbinghaus illusion. The scatter-plots of these correlations are shown in Fig. 4. (B) Comparison of average correlations of magnitudes of the illusions among the geometrical illusions (right), and between geometrical and contrast illusion (left). Note a clear difference between the two groups. Error bars denote standard error of mean. (C) Loadings of each illusion for the first PCA component that explained 36% of the total variance. Note a clear dissociation between geometrical and contrast illusions. The sign of the PCA loadings is arbitrary.