title: Walter H Ehrenstein (1950-2009).
authors: Department of Psychology, Liverpool Hope University, Liverpool, UK. parameg@hope.ac.uk
authors: Galina V
authors: GV
authors: Paramei
mesh_terms: D005858:Germany; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D009488:Neurosciences / Q000266:history*; D009903:Optical Illusions; D011589:Psychology, Experimental / Q000266:history*; D014796:Visual Perception