Ehrenstein illusion, square in circles

Ehrenstein illusion, square in circles

T478/0435 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 99.8MB

Downloadable file size: 2.3MB

Price image Pricing

Please login to use the price calculator

This image is part of the feature Illusions


Caption: Ehrenstein's illusion - a square in concentric circles. This is one of a number of illusions studied by Walter Ehrenstein. The sides of a square placed inside concentric circles appear to curve inwards when in fact they are straight. This is due to the apparent perspective created by the concentric circles. The brain interprets this picture as having depth and alters its perception of the red square accordingly.

Release details: Model release not required. Property release not required.

Keywords: ambiguity, ambiguous, circle, circles, circular, concentric, curved, ehrenstein illusion, illusory, neuroscience, optical illusion, perception, psychology, round, squares, trick, trickery vision, vision, visual, visual trick

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.