Memory Implant Records And Plays Back

A brain implant capable of recording and playing back the electrical activity of neurons has been constructed by researchers from USC and Wake Forest University.

A primary objective in developing a neural prosthesis is to replace neural circuitry in the brain that no longer functions appropriately. Such a goal requires artificial reconstruction of neuron-to-neuron connections in a way that can be recognized by the remaining normal circuitry, and that promotes appropriate interaction. In this study, the application of a specially designed neural prosthesis using a multi-input/multi-output (MIMO) nonlinear model is demonstrated by using trains of electrical stimulation pulses to substitute for MIMO model derived ensemble firing patterns...

These integrated experimental-modeling studies show for the first time that, with sufficient information about the neural coding of memories, a neural prosthesis capable of real-time diagnosis and manipulation of the encoding process can restore and even enhance cognitive, mnemonic processes.
(A cortical neural prosthesis for restoring and enhancing memory)

Here's a summary of the basic experiment:

  • The rats first practiced a simple memory task: To get a refreshing drink of water, hit one lever in a cage, then—after a short distraction—hit the other. They had to remember which lever they’d already pushed to know which one to push the second time,.
  • As the rats did this memory task, an array of electrodes recorded signals between two subregions of the hippocampus, called CA1 and CA3, which are involved in storing new information in long-term memory.
  • The researchers then gave the rats a drug that kept CA1 and CA3 from communicating. The rats still knew the general rules of the task—press one lever then the other, get water—but couldn’t remember which lever they’d already pressed.
  • When the scientists played back the neural signals from CA1 they’d recorded earlier, however, the rats again remembered which lever they had hit, and pressed the other one.
  • When researchers played back the signals in rats not on the drug—amplifying the regular signals from CA1—the rats made fewer mistakes and remembered which lever they’d pressed for longer.
    (Discover Magazine)

Fans of sf writer Lois McMaster Bujold recall the memory biochip mentioned in her 1986 novel Shards of Honor, which allowed the user to play back memories at will.

Thanks to an anonymous reader for writing in with the story and the reference.

Scroll down for more stories in the same category. (Story submitted 6/21/2011)

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 ( 3 )

Related News Stories - (" Medical ")

Three Clues To Limb Regeneration
'Forcing the energy transfer which allowed him to regrow his lost fingers...' - Frank Herbert, 1972.

Electric Head Patch Helps PTSD Patients
'Don't confuse this with the little ten amp neurosis models.' - Robert Sheckley, 1956.

MEDi Robot Calms The Nervous Patient
'Specially programmed stabilizing surrogate devices.' - Anne McCaffrey, 1990.

One-Shot Gene Therapy Cure $665K
One shot - one cure. Guaranteed.

 

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

Snap Specs - Snapchat Spectacles - Are Video Glasses
'The old woman laid her wire-knitting aside and fixed them with the bug-eyed, opaque gape...'

Reading A Scroll Burned To Charcoal
'The scope was adjusted to generate... an image of the lower section of the book.'

Robot Arrested In Moscow
They should have thrown a net over him.

Oh Great, Fence-Climbing Robots
How long till they add the acid-tipped stingers?

Software Agents Fight Unseen On The Web
'...Worms and counter-worms loose on the data-net.'

Sandisk 1 Terabyte SD Memory Card Surfaces
'They should be Welton Fine-Grains, or they would be too bulky to ship...'

Carbyne, The Ultimate Form Of Carbon
'A continuous pseudo-one dimensional diamond crystal...'

Bradbury's Method Used In Search For Bombing Suspect
'He imagined thousands on thousands of faces peering into yards, into alleys...'

New Laser Space Debris Clearing More Subtle Than Clarke's
Rather than nudge them up, nudge them down.

Robots Learn To Swarm Safely
'They were bronzy gleams of smooth motion...'

Samsung's Smart Ring
'Crayn glanced at his finger watch...'

Proposal To Use Lasers To Analyze Asteroids
'Wendis stared thoughtfully at the brilliant lines on the spectroscope screen.'

Autonomous Sumo Robot Wrestling Video
'The expressionless face before me was therefore that of the golem-wrestler...'

Fashion Needs To Step Up Technology Education
'Keeping up with advances in fashion is almost as easy as reading - if you're reading science fiction.'

Youbionic 3D Printed Hand A Dark Knight Masterpiece
'A self-contained robot of precision quality usually joined to his right wrist'

Robots Now Know How To Cause Pain
'THE HATE I FEEL FOR HUMANS AT THIS MICRO-INSTANT...'

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.