Monthly Archives: December 2013

For The Eye Which is an Extension of the Brain

This was a conversation between me and the specialist, on the afternoon following the stroke. I didn’t catch the name “homonymous hemianopsia” and had to look that up later. It took me a few days before being certain I’d got … Continue reading

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Reality vs. Perception? In Adelson’s Illusion Perception is the Easy Victor

All optical illusions fascinate but some astonish. They also teach us things about how human vision operates and how well adapted it is to helping us survive. For my fiftieth blog post I’ve chosen to look at the celebrated Adleson … Continue reading

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Spare me, Mr Rubbish Bin! Menaced by Imaginary Street Furniture

In his book Hallucinations Oliver Sacks writes of a man Gordon H. who had a stroke and lost left peripheral vision in both eyes – left hemianopia. But he had “…little awareness of his vision loss, as his brain appears … Continue reading

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Echolocation, Echolocation, Echolocation: Your Ears are a Sight

It’s well known that dolphins and bats can echolocate; they emit high-frequency sounds and can find their way around by the echoes they hear. There are other less famous animals that can echolocate too. Some birds that live in caves … Continue reading

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Nice day, who cares about the sky?

One delight of writing this blog has been the number of people who direct me to things I should have known about but would never have actually found myself. It’s like having an intelligence network out there. A book introduced … Continue reading

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Filling in the Rainbow: More Adventures in the Blind Spot

I believe in the idea of the rainbow. And I’ve spent my entire life trying to get over it. – Judy Garland Blind Spots Great and Small was about the fact that we all have a pretty large blind spot … Continue reading

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Big Foot Connected to – a Blood Clot ? Remembrance #3

Your Feet’s Too Big (song) “Your pedal extremities are colossal, to me you look just like a fossil” (Fats Waller) Having a stroke was so dramatic, it blotted out the events just before. But looking back, when it came on … Continue reading

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