1978 volume 7(2) pages 225 – 228
doi:10.1068/p070225

Cite as:
Vicario G B, 1978, "Another optical-geometrical illusion" Perception 7(2) 225 – 228

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Another optical-geometrical illusion

Giovanni B Vicario

Received 3 March 1977

Abstract. A new optical-geometrical illusion is described. The parallelism of short rows of dots is affected by some unknown factor, so that the rows appear as pivoting on their middle point. Some explanations of the illusion are considered, but with no success.

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