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

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

Scientists Use Brain Waves To Eavesdrop On What We Hear

RATE THIS! +1
Posted in Science on 16th Feb, 2012 11:50 PM by APM

The day we can scan a person’s brain and “hear” their inner dialogue just got closer. Scientists at the University of California, Berkeley recorded brain activity in patients while the patients listened to a series of words. They then used that brain activity to reconstruct the words with a computer. The research could one day be used to help people unable to speak due to brain damage.

 

It’s not every day neuroscientists get a chance to record activity from the human brain. A group of 15 patients suffering from either epileptic seizures or brain tumors were already scheduled to undergo neurological procedures. The patients, all English speaking, volunteered for the study. After neurosurgeons cut a hole in their skulls, the research team placed 256 electrodes over the part of the brain that processes auditory signals called the temporal lobe. The scientists then played words, one at a time, to the patients while recording brain activity in the temporal lobe.

 

The auditory features of a sound can be characterized by what’s called a frequency spectrogram that measures the strength of different frequencies within the sound. The scientists hoped to use the pattern of brain activity while the word “partner,” for example, was played to generate a second spectrogram. Were it perfect, this process, called “stimulus reconstruction,” would reconstruct a frequency spectrogram identical to the original. However, because the temporal lobe is only one of several brain regions that process sound, the scientists did not expect an exact reconstruction.

 

Brian Pasley, post-doctoral fellow and lead author of the study, devised two different computer models for the stimulus reconstruction. Each was created according to different assumptions about how the brain processes sound. One model outperformed the other, enabling the computer to reconstruct the original word 80 to 90 percent of the time.

 



Read original article » Back to category

Comments

Author: Guest
Posted: 2012-07-30
+0
Annoyed Posted on Whatever you mean by being western ? I am a girl, who was riesad in Bombay (More specifically, Amboli, so I grew up with Reuben and Keenan). I now reside in a Western Country . Let me tell you one thing, the amount of times I was groped, teased, touched inappropriately, had lewd remarks passed at me (all because I was dressed in Jeans and so in your opinion western ) did not seem fair. And, even though I did manage to slap some of these jerks, it did not stop others from doing the same thing. Now living in a Western country, I have never had that happen to me even once. It made me wonder how I could provoke' that response in one country and not another. I now believe, its not what we girls wear or do or say. Its the way some Indian men are riesad (I repeat some, because Reuben and Keenan were not those men)that allow them to believe that all women are nothing but objects . So, I'd suggest, get out of this delusional world of yours which offers you a false sense of security. And please stop blaming the victims. Reply
Author: Guest
Posted: 2013-10-25
+0
dH2u7B Great, thanks for sharing this article post.Really looking forward to read more. Reply
Author: Guest
Posted: 2013-10-26
+0
xoYy4w Wow, great post.Much thanks again. Keep writing. Reply
Author: Guest
Posted: 2013-11-23
+0
By 2012e5b9b412e69c8810e697a5 - 10:29 PMoxycontinI'll gear this review to 2 types of pelpoe: current Zune owners who are considering an upgrade, and pelpoe trying to decide between a Zune and an iPod. (There are other players worth considering out there, like the Sony Walkman X, but I hope this gives Reply
Author: Guest
Posted: 2016-12-26
+0
Those are one perfect pair of trousers! And they make you look great.. I noticed the difference in juicy couture over the last couple of mont/shyear.. Reply


 

Recent headlines

  • Posted in Science on 2017-06-26 14:35:26
    France to ban all new oil and gas exploration in.....read more
    Posted in Hardware on 2017-06-26 14:23:06
    Varjo Promises Human-Eye Resolutions For VR This Year..read more
    Posted in Science on 2017-06-26 14:17:14
    SpaceX Pulls Off Two Droneship Landings in Three Days..read more
    Posted in Business on 2017-06-25 14:44:38
    Microsoft wants to make Direct Reality VR’s answer to.....read more
    Posted in Medicine on 2017-06-25 14:31:51
    UK's first heart pump targets 2018 clinical trial..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
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....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