Optical illusions can enhance brain functions by creating cognitive dissonance. An optical illusion involving circles can assess visual intelligence. Spotting circles within the image can be ...

Warning: This optical illusion might give you a headache. At a glance, the swirls of tilted black-and-white squares create the perception of a spiral. Look more closely and you realize that the ...

Warning: This optical illusion might give you a headache. At a glance, the swirls of tilted black-and-white squares create the perception of a spiral. Look more closely and you realize that the ...

Optical Illusions for Testing your Observation Skills: Try to test your observation skills and eyesight by spotting all the circles in this optical illusion image. How many circles can you see in this ...

We know logically that optical illusions are not real and just messing with us, but despite having been around since we put ochre to rock, we still can't help being baffled by the fact that static ...

These are four perfectly round, concentric circles. Wait no, they aren’t. Oh yes, they are. No, they are not. Are they? No. Yes. Would you please stop moving right now? Stupid circles made of stupid ...

STARE at this picture long enough and you will see trickling streams flowing in the concentric circles. That’s because your eyes just can’t stop moving. Previous work hinted that the brain, not eye ...