2011 Second prize
American University, USA, Universität Giessen, Germany
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(© 2011 Erica Dixon, Arthur Shapiro & Kai Hamburger)
Luminance levels of four disks modulate in time. The top two disks become white when the bottom two disks become black, and viceversa. When placed against a split background, the disks group together along the diagonals. This grouping pattern follows the contrasts of the disks relative to their backgrounds.
Grouping by Contrast,
