The Composite Face Illusion
The two top face halves on the figure on the right are strictly identical (just mask the bottom halves to see that). Yet they seem different.
Based on this compelling visual illusion, researchers have developed a widely used composite face paradigm in order to understand how facial parts are integrated into a unified percept.
This work is reviewed in the following paper:
Here you will soon find additional information about the review paper, composite face stimuli to run your own composite face studies, and more ....
A partial design?
How to cook a composite face paradigm?