Wednesday, 13 October 2004

Implant offers hope to paralysis patients

Researchers released promising data Friday on the BrainGate device implanted in Nagle's head, finding that their sole test subject was able to control an on-screen cursor using brain waves in seven of eight test sessions.

& remember thee squids in strange days?
Superconductors, Quantum Mechanics and Nanotech to the Rescue
SQUID, researchers say, is the most sensitive magnetic sensor yet developed. It can measure magnetic fields as small as 1 femtotesla, or one quadrillionth of a tesla -- the standard measure of magnetic field strength...

With LANL physicists Andrei Matlachov, and Petr Volegov, Espy and Kraus have constructed a SQUID "helmet" to provide "whole head" brain-current images. Radiologists place the helmet -- which resembles an oversized beauty-salon hair dryer -- over a patient's head while he or she sits in a chair.

Other MEG systems respond to brain-current changes in less than a thousandth of a second. SQUID responds in about a millionth of a second.

zack lynch has more: October 04, 2004 Human Brain Imaging Advances
The University Illinois at Chicago recently announced the installation of the most powerful human brain imaging system to date. While most fMRI systems in use today are powered 1.5-tesla or 3.0-telsa magnets, this new high resolution fMRI system has a 9.4-tesla magnet, built by GE Healthcare (a tesla is a large measuring unit of magnetic strength).

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