The Claustrum - The Brain's On Off Switch?

Most modern theories about the brain agree that consciousness is an integration of activity from brain networks, resulting in our experience of one unified reality.

In a study published last week, Mohamad Koubeissi at the George Washington University in Washington DC and his colleagues describe how they managed to switch a woman's consciousness off and on by stimulating her claustrum. The woman has epilepsy so the team were using deep brain electrodes to record signals from different brain regions to work out where her seizures originate. One electrode was positioned next to the claustrum, an area that had never been stimulated before.

[ The claustrum is a thin, irregular, sheet of neurons that is attached to the underside of the neocortex in the center of the brain. It is suspected to be present in the brains of all mammals. ]

When the team zapped the area with high frequency electrical impulses, the woman lost consciousness. She stopped reading and stared blankly into space, she didn't respond to auditory or visual commands and her breathing slowed. As soon as the stimulation stopped, she immediately regained consciousness with no memory of the event. The same thing happened every time the area was stimulated during two days of experiments

John Brunner's fans may recall the data-retrieval mode used to access the memories of Nickie Haflinger in Brunner's 1975 masterpiece The Shockwave Rider. In the story, the subject could be "turned on" or "turned off" using this method.

The man in the bare steel chair was as naked as the room's white walls... Tiny adhesive pads held sensors in position at a dozen places on his scalp...

From each sensor a lead, fine as gossamer, ran to the... data analysis console...

Not looking up, the girl in white plastic said, "Yes, sir, he's status go."

She headed for the door. Taking a seat at Freeman's invitation, Hartz said doubtfully, "Don't you have to give him a shot or something? He looks pretty thoroughly sedated."

Settling comfortably in his own chair adjacent to the data console, Freeman said, "No, it's not a question of drugs. It's done with induced current in the motor centers. One of our specialties, you know. All I have to do is move this switch and he'll recover consciousness - though not, of course, the power of ambulation. Just enough to let him answer in adequate detail. By the way, before I turn him on, I should fill in what's happening..."

Via New Scientist.

Scroll down for more stories in the same category. (Story submitted 7/3/2014)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Medical ")

iFlytek Doctor Robot First To Pass Medical Exams
No problem, we'll just use the autodoc.

Watch What People Are Seeing Via Brain Scanning
'had managed to see through the other man's eyes as the other man, all unaware, washed their Zis limousine sixteen hundred meters away...' - Cordwainer Smith, 1958.

PRIMA Bionic Vision Restoration
'The VISOR... was a medical device used in the Federation to aid patients who have suffered loss of eyesight...'

Targeted Neuroplasticity Training For 'Downloading Skills'
'I know kung-fu.'

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

China Melts Tibetan Permafrost To Plant Forest
'Can you give us a microwave spotlight?'

iFlytek Doctor Robot First To Pass Medical Exams
Doctor shortage? No problem, we'll just use the autodoc.

Slaughterbot AI KIller Quadcopter Drones
'The real border was defended by... a swarm of quasi-independent aerostats.'

Do We Really Want Backflipping Robots?
Also includes wonderful blooper reel.

RNA-Based Biocomputing Device
Living things can sense and analyze complex signals in living cells.

Seasteading Floating Cities
'It was a remarkable island, circular, about half a kilometer in diameter.'

Tesla Semi 'Electrotruck' Unveiled
Elon Musk unveils yet another technological marvel.

Watch What People Are Seeing Via Brain Scanning
'had managed to see through the other man's eyes as the other man, all unaware, washed their Zis limousine sixteen hundred meters away...'

Integrated Circuits Printed Right Onto Fabric!
'...a shirt that displayed email on its sleeve.

Interstellar Asteroid Visits Our Solar System
'This asteroid had whirled in from the cold of the interplanetary space...'

PRIMA Bionic Vision Restoration
'The VISOR... was a medical device used in the Federation to aid patients who have suffered loss of eyesight...'

Audi Traffic Jam Pilot Knows If You're Sleeping
'Even here, riding a garbage truck to eternity, the machine watched him...'

UM Hall Thruster Breaks Records
Someday, we'll see an ion drive used to get to Mars.

Ionity Ultra-fast Charging Station Network
'Recharge the batteries... in almost every town and village...'

VAuth Voice Security Wearable From University of Michigan
'Siri, I gave you a voice command...' 'Yes, but do I know you?'

Ubiquiti FrontRow Camera Records Your Life
Why be choosy? Just upload your whole life to the Internet, and be done with it.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.