BLACKNESS

The visual sensation associated with lack of, of sudden reduction in, light. Black is not absence of visual sensation but is sensationally a color. If we think of what is behind the head, we experience nothing, which is different from black.

(c) Oxford University Press

Richard Gregory, Oxford Companion to the Mind.


Afterimage
Another Way of Seeing
Benham's Disk
Christmas Tree Balls
Color Table
Giant Iris

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