Perception - visual illusions


Ponzo illusion

Misinterpreted depth cue - converging lines gives illusion of distance - mentally enlarge top line

Perceive line higher up as longer

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Muller-Lyer illusion

Misinterpreted depth cue

Ingoing fins: shape of outside building, seems closer so scaled down

Outgoing fins: inside corner of room, seems further away so scaled up

2 vertical lines same length - line with outgoing fins seen as longer 

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Rubin's vase illusion

Ambiguous figure

Face and vase - both are correct but brain alternates

2 possible interpretations and brain can't decide which is correct


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Ames room illusion

Misinterpreted depth cue

Room shape of a trapezoid

People seen as different sizes even though they're the same size

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