By Paul Vaska, as told to Flora Lichtman
Posted 07.05.2011 at 1:59 pm 2 Comments
I’m an instrument builder, mostly, and I work on positron-emission-tomography devices: PET. Doctors use them to look for cancer, but neuroscientists use them too. In studies with lab rats, they inject a mildly radioactive substance into the rat, and the PET scan measures the gamma rays the substance gives off. This tells researchers what part of the brain the substance is in and what parts are active.
Electrode implants which zap areas of the brain have mysteriously helped ease the symptoms of crippling diseases such as depression and Parkinson's. Now brain scans could help predict who exactly might benefit from deep brain stimulation (DBS), based on seeing which interconnected regions of the brain "light up" at the same time, New Scientist reports.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.