Category Archives: The brain and visual perception

Oliver Sacks

More sad news. Oliver Sacks has just died. There is a moving TED blog here. Advertisements

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Marl Twain and the Catching Reflex

Somewhere in Huckleberry Finn by Mark Twain there is a famous episode where Huck, a boy, masquerades as a girl. Wanting somewhere to stay, he is taken in by a Mrs Loftus, but after a while as they talk she … Continue reading

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A Tale Of Two Polychromats

  This gorgeous but rather disturbing creature is a mantis shrimp. It looks like an alien being, and indeed it has superpowers! But it’s not an alien. Nor a mantis. Nor a shrimp. But it looks a little bit like … Continue reading

Posted in 101 experiments in seeing, Animal Intelligence, Sensory perception, The brain and visual perception, Uncategorized | Tagged , , , | 4 Comments

The Colour of Nothing

Recently Belgian Artist Frederik De Wilde exhibited a square blacker than any human being has ever seen before. Blackboards look black but actually reflect as much as 10% of the light falling on them. De Wilde’s black square reflects 0.01% … Continue reading

Posted in 101 experiments in seeing, Art and vision, Blindness and visual impairment, The brain and visual perception, Uncategorized | Tagged , , , , , , , , , , | 2 Comments

Smellacious Gardens Oh You Blind

I refreshed my potpourri with lavender just yesterday, and was suddenly telewafted back to a garden for the blind, a little garden I once knew well. I think it was called a ‘Fragrant Garden for the Blind’ or something like … Continue reading

Posted in 101 experiments in seeing, Blindness and visual impairment, Old age, Sensory perception, Stroke survivor, The brain and visual perception | Tagged , , , , , , , | Leave a comment

How’s The Mincers?

Recently a friend asked, “How’s the mincers?” “The mincers are good”, I replied. “But there’s no improvement in the watch and chain.” It’s Cockney rhyming slang. Mincers=mince pies=eyes. Watch and chain=brain. I get the same question most days (although not … Continue reading

Posted in Blindness and visual impairment, Old age, Stroke, Disability, Cognition, The brain and visual perception, Uncategorized | Tagged , , , , , , , | Leave a comment

The Big Spoon, The Little Spoon and The Extra D: Experiment 14/101

Our retinas are flat and 2D, surfaces not solids. But human beings perceive the world vividly in 3D. How can it be? Where does the extra D come from? An excellent online article by David Hubel lists a whole range … Continue reading

Posted in 101 experiments in seeing, Blindness and visual impairment, The brain and visual perception | Tagged , , , , , | 2 Comments