July 14, 2012, 20:21
Hi Peter
You might find this article relevant:
http://www.newscientist.com/article/dn16911-schizophrenics-see-through-hollowmask-illusion.html
John
You might find this article relevant:
http://www.newscientist.com/article/dn16911-schizophrenics-see-through-hollowmask-illusion.html
John