Chapter 5 - Optical Illusions, Equivocal Figures

This chapter of Visual Illusions discusses visual perception and optical illusions. Many figures apparently change in appearance owing to fluctuations in attention and in associations. Our perception is strongly associated with our accustomed ways of seeing objects. When the object is suggested it grasps our mind completely in its stereotyped form, resulting in what we call an optical illusion.

The psychology of optical illusions is also discusses. The psychological hypotheses introduce factors such as judgment, will, attention and imagination.

The physiological hypotheses depend largely upon such factors as accommodation and eye-movement.

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Fluctuating Optical Illusions Visual perception, psychology, physiology and how they relate to optical illusions.

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