AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Day R H Parks T E , 1989 “To exorcize a ghost from the perceptual machine”, in The Moon Illusion Ed. Hershenson M (Hillsdale, NJ: Lawrence Erlbaum Associates) pp 343–3502. Gregory R L , 1997 Mirrors in Mind (Oxford, New York: W H Freeman)