Define ambiguity
Some images can be perceived in more then one way
Define fiction
A figure is perceived even though it is not part of the image presented
Define misinterpreted depth cues
Some illusions rely on these to ‘work’
Your brain sees linear perspective and mistakenly applies the rule of size constancy.
Define size constancy
The Brains ability to perceive familiar objects as the same size despite changes in the size of the image on the retina
Example of misinterpreted depth cue
The Ponzo illusion
The converging lines give us an impression of distance
the rule of size constancy mentally enlarges it making the top line longer then the bottom line