< Back

I promise this is just the exact same image reproduced at different sizes. No cheating or photo manipulation involved!

CREDITS This illusion was invented by Philippe G. Schyns and Aude Oliva of the University of Glasgow. It is featured on this web page: http://cvcl.mit.edu/gallery.htm , listed under 'Dr Angry and Mr Smiles'. It is taken from Schyns and Oliva's paper, "Dr Angry and Mr Smiles: when categorization flexibly modifies the perception of faces in rapid visual presentations, Nov 1998". It is a copyright image and if they tell me to take it off this web page, I will.