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What are dreams and why do we have them...and Stroke

Posted Dec 13 2009 5:00pm


Lectures curated around NOVA: What Are Dreams? about how leading dream researchers are using extraordinary experiments to investigate the world of sleep.
What are dreams and why do we have them? Are they a window into a hidden realm within us? Science is only just beginning to understand. NOVA joins the leading dream researchers and witnesses the extraordinary experiments they use to investigate the world of sleep. From human narcoleptics to sleepwalking cats, from recurrent nightmares to those who can’t dream, each sequence contains a vital clue to the question these scientists are pursuing: why do we dream?


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GHAJAR: Probably the key part is monitoring the brain pressure—the key part in treating patients with severe-head injury and trying to prevent the second injury—the first injury is the accident. You're trying to prevent the second big injury. You've got a small piece of brain that's been bruised and now this is being propagating. It's going throughout the whole brain. You're trying to prevent that from occurring. And the way to do that is diagnosis, which is monitoring the brain pressure, putting a tube in the brain and monitoring the pressure. Once you do that you get a number. Once you get that number you know how swollen the brain is, and then you do other things to try and prevent the brain from swelling even more. more....
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