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For questions relating to optical illusions, how our perceptual and cognitive mechanisms give rise to them, the neurological basis of perceiving optical illusions and general queries relating to optical illusion research.
2
votes
Multistable perception with three possibilities
Here’s an image I found that triggers tristable perception (as opposed to just bistable perception):
The three possible interpretations are
A big cube with a smaller cube in front of it
A big cub …