Sunday, April 21, 2013

Parkinson's, depression and the switch that might turn them off



Deep brain stimulation is becoming very precise. This technique allows surgeons to place electrodes in almost any area of the brain, and turn them up or down -- like a radio dial or thermostat -- to correct dysfunction. Andres Lozano offers a dramatic look at emerging techniques, in which a woman with Parkinson's instantly stops shaking and brain areas eroded by Alzheimer's are brought back to life. (Filmed at TEDxCaltech.)

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How learning happens in the brains of sleeping babies

Dozing in a bassinet, a newborn wears a stretchy cap fitted with more than 100 soft electrodes. A low beep sounds, and she squints. Nearby, ...