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'''Op art''' is art which uses color and abstract patterns to create an illusion of pulsing movement.
'''Op art''' is art which uses color and abstract patterns to create an illusion of pulsing movement. The name was coined in 1964 by ''Time'' magazine,<ref>[http://arthistory.about.com/cs/arthistory10one/a/op_art.htm Op Art], about.com</ref> a takeoff on the term "pop art" which had been coined a few years earlier. It was perhaps more of a fad than a major movement, particularly in the sixties when op art seemed to evoke visual sensations similar to those induced by psychedelic drugs.
The visual effects induced by op art may be partly due to a [[moire effect]] occurring between the geometrical pattern and its afterimage, shifting as a result of eye movement.
Important artists in the style included Bridget Riley and Victor Vasarely.
==Notes and references==
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