This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Sensory information flowing into our brains ...

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Psychologists have long been interested in how people interpret ambiguous, bistable images, such as the examples below. Bistable images. Top left: faces or a vase. Top right: rabbit or duck. Bottom ...

Cognitive illusions are assumed to arise by interaction with assumptions about the world, leading to "unconscious inferences", an idea first suggested in the 19th century by Hermann Helmholtz.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Illusions like these mess ...

Brain’s fill-in tricks: Special neurons in the visual cortex help complete missing or ambiguous patterns, creating illusions that feel real. Mindset and perception: What you see first in an illusion ...