Brain Activity Decoded To Produce Words, Could Produce Method of Mind-Reading
February 1, 2012 1:30 PM
electrodes placed on the brain
New method could help those incapable of speech
At some point in the near future,
mind-reading could be a power
possessed not only by fictional characters like Professor Charles Xavier (Professor X), but also real-life researchers who are searching for ways to help individuals who have lost their ability to speak.
Robert Knight, of the Helen Wills Neuroscience Institute at the University of California - Berkeley, and Brian Pasley, a scientist in Knight's lab at UC Berkeley, have successfully translated brain activity into words.
The team was able to do this by recruiting the cooperation of 15 patients, who were already in the hospital for intractable epilepsy treatment. This particular operation requires removal of the top of the patient's skull, where a net of electrodes are then placed along the surface of the brain. The
electrodes identify the origin areas of the patient's fit
, and that particular tissue is eliminated.
The 15 patients were each played different words aloud for five or 10 minutes. While the words were played, the brain activity of each patient was recorded via the electrode nets. As it turns out, the brain managed to break down sounds into different acoustic frequencies, where the range of speech is 1-8,000 Hertz.
Later, new words would be played to the patients in order to see if familiar words could be identified and repeated. According to the researchers, they received accurate results from recordings in the superior temporal gyrus, which is part of the brain on one side above the ear. While some words could be identified, it was difficult to recognize others, showing that the area of mind reading definitely needs more research.
"This is exciting in terms of the basic science of how the brain decodes what we hear," said Knight. "Potentially, the technique could be used to develop an implantable prosthetic device to aid speaking, and for some patients that would be wonderful. The next step is to test whether we can decode a word when a person imagines it. That might sound spooky, but this could really help patients. Perhaps in 10 years it will be as common as grandmother getting a new hip."
One issue that was brought up in regards to this form of mind reading is the possibility of it being used to interrogate criminals. However, Knight said this would be near impossible since the skull needs to be removed and cooperation of the patient is needed in order for it to work.
Other potential issues that researchers may run into with mind reading is distinguishing between private thoughts and what the person really wants to say.
This isn't UC Berkeley's first crack at the concept of mind-reading. Last September, Jack Gallant and Shinji Nishimoto from UC Berkeley used fMRI and computational models to
decipher and reconstruct movies from the minds of patients
. They were able to successfully rebuild the human visual experience by piecing together videos from the mind.
"So if you want to save the planet, feel free to drive your Hummer. Just avoid the drive thru line at McDonalds." -- Michael Asher
IBM's "5 in 5" Predicts the Launch of Mind-Reading Devices by 2017
December 20, 2011, 2:26 PM
Adjustable Brain Implant Could Identify Seizure Origins, Shut it Down
November 14, 2011, 3:21 PM
Researchers One Step Closer to Mind-Reading with Brain Imaging Research
September 23, 2011, 12:27 PM
PIQ ROBOTTM reveals its new artificial intelligence software
November 29, 2016, 12:59 AM
One more time - Happy Thanksgiving to Everyone Around the World
November 24, 2016, 4:00 AM
Google’s Smart Contact Lens Project gets halted for 2016
November 20, 2016, 7:00 AM
Cell Research Study shows African Americans have greater immune response to infection
November 10, 2016, 1:00 AM
UTHealth Clinical Trial Shows Progress Using Stem Cells to Treat Traumatic Brain Injury
November 8, 2016, 1:00 AM
Uber Partners with Circulation to Pilot Program Connecting Transportation and Digital Health Care
November 6, 2016, 5:00 AM
Most Popular Articles
Are You in the Market for Earphones?
March 24, 2017, 7:35 AM
OnePlus 3T – 5.5” Optic AMOLED and Dash Charging Technology
March 23, 2017, 8:45 AM
Gigabyte GA-Z170X-Gaming G1 – Intel Thunderbolt 3 Certified Motherboard
March 9, 2017, 6:25 AM
Huawei P8 Lite 2017 – Android 7 Nougat Smartphone with Octa-Core Processor
March 8, 2017, 7:03 AM
Acer Swift 3 – Ultra Thin Laptop in an All-Aluminum Shell
March 25, 2017, 7:40 AM
Latest Blog Posts
Uber Technologies Inc Driverless Car hit by Human-driver
Mar 30, 2017, 8:00 AM
Android Creator and New Bezel-less Smartphone
Mar 29, 2017, 10:28 AM
More Apps From Google
Mar 28, 2017, 7:15 AM
Are you thinking of performance and speed? Intel claims:
Mar 25, 2017, 7:45 AM
Apple buys an automation app called Workflow. The deal was completed today and brings the app along with its developers.
Mar 23, 2017, 7:35 AM
Apple Announces new color for iPhones and iPads
Mar 22, 2017, 7:45 AM
Instagram: You Can Now Save Live Videos For Later
Mar 21, 2017, 7:49 AM
Samsung Galaxy S8 to Get New Color Scheme
Mar 20, 2017, 7:45 AM
What else to worry about?
Mar 17, 2017, 6:45 AM
Icon of the Day: Intel/ NVIDIA or Mobileye
Mar 16, 2017, 6:15 AM
JUST IN - Twitter Hijacked : High-Profile Account Accesses
Mar 15, 2017, 7:07 AM
Mar 14, 2017, 7:30 AM
News and Tips
Mar 13, 2017, 6:30 AM
iPhone 8 – May Not Get Curved Screen
Mar 11, 2017, 8:00 AM
California paves way to self-driving car tests without humans
Mar 11, 2017, 7:18 AM
Smart Machines V hackers
Mar 10, 2017, 7:00 AM
Uber Can Resume Autonomous Car Testing in California
Mar 9, 2017, 6:50 AM
Mar 8, 2017, 7:09 AM
Mar 7, 2017, 8:45 AM
World news 3-6
Mar 6, 2017, 5:40 AM
Mar 4, 2017, 7:40 AM
Mixed News of the Day
Mar 4, 2017, 6:32 AM
More Blog Posts
Copyright 2017 DailyTech LLC. -
Terms, Conditions & Privacy Information