Optical Illusions

Known as: Illusion, Optical, Illusions, Optical, Optical Illusion

The visual perception of an image that differs from the reality of the image.

National Institutes of Health

Papers overview

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2018

ABSTRACT A new class of objects, called topology-disturbing objects, is presented. These objects appear to disturb the…

2014

BACKGROUND The plunging tip is defined as a nasal deformity where the nasal tip descends or "plunges" during smiling. OBJECTIVE…

2012

A subdivided path in the visual field appears longer than an empty path of the same length. This effect may be attributed to the…

2012

Subjective estimates of lengths or areas in the visual field depend on the visual contents of the estimated space (filled/empty…

Review

2011

Review

2011

How do we help patients overcome cognogens?[1][1] There are dozens of techniques, many of which will be outlined in future…

2009

The filled/empty illusion (Oppel-Kundt) is one of the oldest geometrical-optical illusions, but the determinants of the illusion…

1972

Ganz's theory of figural aftereffects is criticized on these grounds: that the 'attraction effect' he described is an artifact of…

1970

To an observer whose one eye is covered with a relatively strong filter (approximately 90 percent extinction) and who views a…

1968

This study demonstrates the role of microfluctuations of accommodation in the viewing of the concentric ring illusion. Four…

1967

With a specially designed apparatus of cardboard and embossed with Braille lines, 9 blind Ss, 3 born blind, 3 blinded in…