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February 18, 2013

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5:49 PM | How Neuroscience Will Fight Five Age-Old Afflictions
Rewiring The Brain: Seizures a) A surgeon identifies where in the brain seizures occur using electrodes placed on the scalp, then inserts an electrode array directly into that region. b) A seizure starts when neurons become overly excited, causing a prominent electrical signature. The array detects this signature and emits its own electrical pulse, which disrupts the neurons. c) The pulse also puts a negative current on a polymer enveloping the electrodes on the array, causing its charge to […]
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January 21, 2013

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5:00 PM | Will This Fish Transform Medicine?
The New Lab Rat Zebrafish (Danio rerio) are one-inch-long freshwater animals that originate in south and southeast Asia. Nature Images/UIG/Getty ImagesWhy the tiny zebrafish is becoming many researchers' favorite animal The animal facility on the bottom floor of a drab building at Duke University is uncomfortably warm and smells a bit like raw seafood. That's not surprising given what's down there. The space holds a few thousand plastic fish tanks, each home to dozens of zebrafish: […]
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