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Mind Games

Try out some of the experiments referred to by Professor Ramachandran.

Blindspot Experiments

Each eye has a blindspot. It's caused by the fact that the small area of the retina where the optic nerve is connected to the eyeball is not sensitive to light.

The following experiments prove the existence of the blindspot and demonstrate how the brain can fill in the missing information. They provide important hints about how the neural machinery of the brain works in practice.

All experiments are taken from V.S. Ramachandran's book, Phantoms In The Brain, published by Fourth Estate.

  • Try blindspot experiment number 1


  • Try blindspot experiment number 2


  • Try blindspot experiment number 3


  • Try blindspot experiment number 4


  • Try blindspot experiment number 5


  • Try blindspot experiment number 6




  • Illusions and Paradoxes
    A collection of illusions which illustrate that our senses cannot always be trusted.

    Brain and Behaviour (from Serendip)
    Interactive exhibits demonstrating a variety of neurological conditions.

    Richard Gregory's website
    Stunning videos from the master of illusion, Professor Richard Gregory.

    Vision experiments (from the Science Museum)
    Try your hand (or rather your eye) on The Stroop Effect and other illusions from the London Science Museum.

    Seeing (Vision experiments from the San Francisco Exploratorium)
    Watch "The Disappearing Act" at the website of the San Francisco Exploratorium.

    V.S. Ramachandran's Illusions
    Professor Ramachandran's own page of illusions.



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    The Lectures

    Lecture 1:
  • Phantoms in the Brain
    Lecture 2:
  • Synapses and the Self
    Lecture 3:
  • The Artful Brain
    Lecture 4:
  • Purple Numbers and Sharp Cheese
    Lecture 5:
  • Neuroscience - the New Philosophy

  • Glossary

    A collection of useful definitions, diagrams and dissections.

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