Which sphere occupies more of your screen? (they are the same) |
The effect is more compelling with larger, and more realistic, stimuli. |
Click on the image below to see a larger version. |
To see a Java demo of the measurement of the perceptual effect using |
a method-of-adjustment technique, visit Huseyin Boyaci's web page. |
A small (1.5MB) version is available here. |
A large (7MB) version is available here. |
Image rendered by Huseyin Boyaci