Richard Gregory standing outside the café on St Michael’s Hill, which inspired his (re-)discovery of the café wall illusion (February 2010)
Steven Battle
A blue plaque to commemorate the life and work of a great interdisciplinary thinker, whose interest was in visual illusion and what these revealed about human perception, will be unveiled tomorrow [Wednesday 10 May]. Bristol Vision Institute (BVI) at the University of Bristol will unveil the plaque to honour Professor Richard Gregory, a leading Bristol academic and psychologist. The plaque will be unveiled by the Lord Mayor of Bristol, Councillor Jeff Lovell, together with family, friends and colleagues of Professor Richard Gregory at the Workhouse Kitchen , at the bottom of St Michael's Hill, a central point for vision scientists. This cafe was where Richard rediscovered the illusion contained in the tiles. Now known as the café wall illusion, it is a geometrical-visual illusion in which the parallel straight lines between the black and white tiles appear to be sloped. Professor David Bull , Director of BVI and Professor of Signal Processing in the Department of Electrical and Electronic Engineering at the University of Bristol, said: "Richard was an experimental psychologist whose work has been crucial to our understanding of sensory, and in particular visual, perception and illusion. "The plaque will commemorate Richard's significant achievements including the rediscovery of the café wall illusion, and celebrate his connection to Bristol.
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