Daily Archives: May 21, 2013

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Sleep and your brain’s video recorder

My wife and I had a conversation with a neuro-ophthalmologist at Duke University a few months ago. He explained to us that 30-50% of the brain’s activity is taken up with vision. That fact amazed me. The eye is the lens that lets in the light, but our brains do the processing and storage of the images carried by the light. So everything I see is processed and stored in my brain, even if I don’t remember all of what I see. So that led me to consider, well, just how much can our brains store? Here is an answer from Scientific American: “If your brain worked like a digital video recorder in a television, it has enough memory to hold […]