Incredible Illusions

Give one of these a try!

• Camouflage Can you find the hidden shape?
• Herring Illusion Can you see straight?
• Horse's Tail Illusion How the same colour can look different?
• Moving Lines Illusion Everything is shifting around!
• Muller-Lyer Illusion How long is the line?
• Poggendorff Illusion Can you make a straight line?
• Titchener Illusion How large are they?
• Two Grey Steps Illusion Grey is not always grey!
• Unreal Triangles See the invisible.
• Zollner Illusion See a new slant on parallel lines.
• Which is which, this or that? Ambiguity and instability in images
• Picture This Landscapes, background and camouflage.
• Delayed Telecasts After-effects in colour and black and white.
• Ghost Busters Movement, colours and shapes that aren't really there.
• Mission Impossible Impossible figures, 3D interpretations.
• The Distorted Top Ten Mind-tricks with shapes, colours, sizes and patterns.
• Far and Away Depth perception and judging distance.
• Atten-shun! Visual organisation and the role of visual attention.
• Word Perfect Language illusions.
• Taste Test Sensory illusions with the taste buds.
• Listen Up Sound illusions.
• Heavy, Man Power of past experience.

Why are visual illusions important? Read more about how illusions give insights into how we see and think.

Billions of neurons... impulses at 430 km/h... your brain is pretty complicated!

Want to stump your friends? Here's a few facts and figures they (and you) might not know!

Visit these sites too!

Excellent collection of online illusions with thorough explanations: http://www.illusionworks.com/index.html

An impressive list of online brain resources, mostly non-technical: http://www.oise.utoronto.ca/ ~ggay/brain.htm.

The Exploratorium in San Francisco has a collection of Online Illusions. They've also got a collection of Memory Games.