April 7, 2009 | 9 comments
The Neuroscience of Yoricks's Ghost and Other Afterimages
This is the eighth article in the Mind Matters series on the neuroscience behind visual illusions.
By Stephen L. Macknik and Susana Martinez-Conde
CLICK TO ENLARGE + IMAGE COURTESY OF ROB JENKINS AND RICHARD WISEMAN
Evolution and Adaptation
In celebration of Darwin’s birthday, psychologists Rob Jenkins of the University of Glasgow and Richard Wiseman of the University of Hertfordshire created an illusory homage to Darwin’s evolutionary roots. Stare at the center of the image for 10 to 30 seconds and look away at a white surface. The monkeys turn into an afterimage of Darwin’s portrait!
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