Motion & perception / 1999
Peripheral drift
Still gradients seem to drift at the edge of vision.
TRY THIS
Look just to one side of the pattern, then blink or shift your gaze. The circular pattern may seem to move despite being static.
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THE IMAGE IN THIS ARCHIVE
Paulnasca (talk)
Original file & attribution · Public domain
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What is Peripheral drift?
Still gradients seem to drift at the edge of vision.
What should I look for in Peripheral drift?
Look just to one side of the pattern, then blink or shift your gaze. The circular pattern may seem to move despite being static.
What explains Peripheral drift?
Different luminance levels can produce signals with different response timing. When a blink or eye movement introduces a change, a stationary asymmetric pattern can stimulate motion processing.
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