Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

Can An Entire Brain Be Simulated In A Computer?

A big team of researchers from Jülich Research Centre, Norwegian University of Life Sciences, Aachen University, RIKEN, KTH Royal Institute of Technology, and KTH Royal Institute of Technology are trying a large-scale simulation of the brain's neurons and connections.

The algorithm was developed using NEST* (“neural simulation tool”) — open-source simulation software in widespread use by the neuroscientific community and a core simulator of the European Human Brain Project. With NEST, the behavior of each neuron in the network is represented by a small number of mathematical equations...

During the simulation, a neuron’s action potentials (short electric pulses) first need to be sent to all 100,000 or so small computers, called nodes, each equipped with a number of processors doing the actual calculations. Each node then checks which of all these pulses are relevant for the virtual neurons that exist on this node. That process requires one bit of information per processor for every neuron in the whole network. For a network of one billion neurons, a large part of the memory in each node is consumed by this single bit of information per neuron. Of course, the amount of computer memory required per processor for these extra bits per neuron increases with the size of the neuronal network. To go beyond the 1 percent and simulate the entire human brain would require the memory available to each processor to be 100 times larger than in today’s supercomputers.

Achieving whole-brain simulation on future exascale supercomputers. That’s where the next-generation NEST algorithm comes in. At the beginning of the simulation, the new NEST algorithm will allow the nodes to exchange information about what data on neuronal activity needs to sent and to where. Once this knowledge is available, the exchange of data between nodes can be organized such that a given node only receives the information it actually requires. That will eliminate the need for the additional bit for each neuron in the network.

With memory consumption under control, simulation speed will then become the main focus. For example, a large simulation of 0.52 billion neurons connected by 5.8 trillion synapses running on the supercomputer JUQUEEN in Jülich previously required 28.5 minutes to compute one second of biological time. With the improved algorithm, the time will be reduced to just 5.2 minutes, the researchers calculate.

“The combination of exascale hardware and [forthcoming NEST] software brings investigations of fundamental aspects of brain function, like plasticity and learning, unfolding over minutes of biological time, within our reach,” says Diesmann.

SF fans have spent generations waiting for hardware brain components.

Isaac Asimov, in his short story Reason,

All that had been done in the mid 20th century on "calculating machines" had been upset by Robertson and his positronic brain paths. The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain. (Read more about the positronic brain)

Another train of thought stimulated by this research is the idea that each of us is a computer simulation. This gives some idea of the hardware required to simulate a brain full of connections.

Via KurzweilAI.

Scroll down for more stories in the same category. (Story submitted 3/17/2018)

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 - (" Computer ")

AVATECT Prevents Spoofing Of Avatars
'Your physical appearance is a graphical encryption that the human mind is uniquely qualified to decode.' - Daniel Suarez, 2009.

I Really Want A Folding Computer
'...A paper thin polycarbon screen unfurled.' - William Gibson, 1986.

Galaxy Z Fold 3 Perfect For William Gibson's 'Control-Face'
'Chia recognized the square as the control-face of the computer she'd seen in his room.' William Gibson, 1996.

Poor Humans. Miami Herald Bot Writes Great Real Estate Articles.
'Nothing of news-interest escape it...' - Philip K. Dick, 1953.

 

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.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

Lightyear 0 World's First Production-Ready Solar Car
'It could maintain a steady six miles per hour...'

AI Robots Excel At Trash Sorting And Recycling
'Then they press one of these here thirteen buttons...'

Could Increased Space Rocketry Damage The Ozone Layer?
'...without burning a single hydrocarbon molecule to injure the diseased atmosphere any further.'

Dyson's Secret Household Robots
'...work a human being does around a house.'

Festo BionicSwift Bird Robots Described In 1930
'Bird-like robots now descended from the ceiling of the theatre...'

Robotics Jobs In The Food Industry
'The efficient robot waiter of the Sky Club had cleared away the remnants of an epicurean meal.'

Prototype 3D Printer Could Print Arteries In Seconds
'...in the tank the new body and the new mind and memory and life has taken almost instant form.'

China Wants 'Hard Kill' Capability To Counter Starlink Satellites
'pirate three-vee satellites sanded out of orbit...'

Low-Cost Gel Pulls Water From Atmosphere Like Star Wars Vaporator
'The atmosphere yielded its moisture with reluctance. It had to be coaxed down...'

Pixy Flying Selfie Drone From Snap
'It hovered behind him like a large tame bee.'

Smallest Remote-Controlled Walking Robot Crabs
A robot 'as big as a dust grain.'

Pleasure Model Replicants Now Available
'Want a life-companion... sir, I can get you up any style you want.'

Robot Covered In Living Human Skin
'Hey buddy, you got a dead cat in there or what?'

Dall-E 2 Creates Art To Order
'Something different,' she said. 'Maybe a combined Miro and Goya.'

SpaceX Rocket Quick Reaction Force
'... the ship went into free flight, arching in a high parabola.'

Do AIs Create Their Own Language?
'the Mentanicals have begun to acquire a faculty not primarily given them by their inventors — the faculty of speech...'

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.