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Social media has been on fire with a debate – not over ISIS, healthcare or global warming – but over the perceived color of a dress.
How accurately do your eyes see the world?
  • BrainFacts/SfN
  • 3 min
Why can’t our extremely complex eyes render simple optical illusions? Surprise, surprise — it comes back to the brain, which has only evolved to encounter natural stimuli.
  • TED
Mark Changizi explains how the brain reckons with optical illusions in this TED talk.
  • TED
You won't believe your eyes in this spooktacular illusion.
  • Scientific American
What can magic tricks tell us about the brain?
  • Scientific American
The Hollow Face Illusion is spooky. The photo is of a flat sheet of plastic with a facial mask pushed in one side. In this case it’s the face of Albert Einstein*.
I can still vividly recall the head of my Perception professor in college blowing up right in front of the class.
  • BrainFacts/SfN
Hallucinations emerge when inner thoughts and expectations overpower sensory experience.
  • BrainFacts/SfN
Does this brain appear to be rotating? Rapid, involuntary eye movements paired with sharp contrast patterns in an image may cause the brain to perceive motion where there is none.
  • BrainFacts/SfN
An interactive website about the eye. Learn about the parts of the eye and eye safety, and try out some optical illusions.
  • National Eye Institute