http://www.newscientist.com/article/dn16911-schizophrenics-see-through-hollowmask-illusion.html
this is a test which could be diagnostic in testing for schizophrenia
play the video and see if you can tell the difference between the lady with the concave and convex face (colour pics)
this is a test which could be diagnostic in testing for schizophrenia
play the video and see if you can tell the difference between the lady with the concave and convex face (colour pics)