Scientists in Seattle have created a brain implant that has moving electrodes. Up until now implants collected signals from a large number of neurons at one time, requiring very complex computer software to process the signals.

The new implant developed by Chet Moritz uses the movable electrodes to locate individual neurons and connect to them. This allows for a clearer signal. Each Electrode is only 50 micrometers wide.

In experiments conducted by the Moritz team, monkeys had the implants fitted and these were successful in controlling the wrist muscles.

This is the first real step towards the development of smart prosthetics and implants that may allow paralyzed people to regain some control back.

The biggest challenge identified by Moritz is finding some way to get the electrodes to lock in on the required neurons while the user is moving.

[Via NewScientist.com]