Tiny surface electrodes could help paralyzed people move
By Carina StorrsPosted 11.04.2009 at 10:17 am 3 Comments
Bundles of microelectrode wires fan out over a small area of a human brain. These electrodes were placed by neurosurgeons at the University of Utah to see if they could detect precise brain activity associated with motor movements. To their surprise, the hair's-width microelectrodes, originally designed to study epilepsy, picked up the firings of small groups of neurons despite being merely set on the surface of the brain.