Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.

 

Thomas Edison

Noninvasive Brain-computer-interface training helps tetraplegics win avatar race

RATE THIS! +5
Posted in Hardware on 30th May, 2018 03:49 AM by Alex Muller

Noninvasive brain–computer interface (BCI) systems can restore functions lost to disability — allowing for spontaneous, direct brain control of external devices without the risks associated with surgical implantation of neural interfaces.

 

But as machine-learning algorithms have become faster and more powerful, researchers have mostly focused on increasing performance by optimizing pattern-recognition algorithms.

 

But what about letting patients actively participate with AI in improving performance?

 

To test that idea, researchers at the École Polytechnique Fédérale de Lausanne (EPFL), based in Geneva, Switzerland, conducted research using “mutual learning” between computer and humans — two severely impaired (tetraplegic) participants with chronic spinal cord injury. The goal: win a live virtual racing game at an international event.

 

The participants were trained to improve control of an avatar (a person-substitute shown on a computer screen) in a virtual racing game. The experiment used a brain-computer interface (BCI), which uses electrodes on the head to pick up control signals from a person’s brain.

 

Each participant (called a “pilot”) controlled an on-screen avatar in a three-part race. This required mastery of separate commands for spinning, jumping, sliding, and walking without stumbling.

 

After training for several months, in Oct. 8, 2016, the two pilots participated (on the “Brain Tweakers” team) in Cybathlon in Zurich, Switzerland, the first international para-Olympics for disabled individuals in control of bionic assistive technology.*

 

The BCI-based race consisted of four brain-controlled avatars competing in a virtual racing game called “Brain Runners.” To accelerate each pilot’s avatar, they had to issue up to three mental commands (or intentional idling) on corresponding color-coded track segments.

 

The two participants in the EPFL research had the best three times overall in the competition. One of those pilots won the gold medal and the other held the tournament record.

 

The researchers believe that with the mutual-learning approach, they have “maximized the chances for human learning by infrequent recalibration of the computer, leaving time for the human to better learn how to control the sensorimotor rhythms that would most efficiently evoke the desired avatar movement.

 

Our results showcase strong and continuous learning effects at all targeted levels, machine, subject, and application, with both [participants] over a longitudinal study lasting several months,” the researchers conclude.


Tags: brainneurosciencehealthmedicineresearch

Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Science on 2018-08-18 01:34:39
    Hundreds of autism genes found to be triggered by a.....read more
    Posted in Science on 2018-08-18 01:30:28
    SpaceX vows manned flight to space station is on track..read more
    Posted in Hardware on 2018-08-17 03:24:59
    Solar and Wind has to increase 5 times to provide all of.....read more
    Posted in Science on 2018-08-16 18:07:15
    Radar could make for less-biased heart checks..read more
    Posted in Medicine on 2018-08-16 17:57:14
    Psychedelics Are Showing Real Promise for Treating Mental.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    In five years quantum computing will be mainstream..read more
    Posted by AlexMuller
    Google partners with Johnson and Johnson to make lower cost.....read more
    Posted by AlexMuller
    Electron holography microscope with spatial resolution down to.....read more
    Posted by AlexMuller
    Lower cost advanced Nuclear power could dominate future US energy..read more
    Posted by AlexMuller
    Why Hasn’t AI Mastered Language Translation?..read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me