Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Neural networks: All versatility in one model

13.03.2018

Max Planck researchers Nataliya Kraynyukova and Tatjana Tchumatchenko have explored how the structure of neural networks is related to their ability to produce a set of fundamental cortical functions. They have shown that only one model is sufficient to explain the variety of cortical computations. In the latest issue of Proceedings of the National Academy of Sciences of the United States of America they now report on these results.

Our sensory organs translate sensory stimuli into electrical signals, which are then transmitted and processed by the neural networks in the brain. Among other things, these transformations in the cerebral cortex allow us to process visual impressions, store memories, and make decisions.


Processing of visual memories is reflected in the activity of the visual cortex neurons.

N. Kraynyukova/Max Planck Institute for Brain Research

Although neuroscience is still far from an adequate understanding of these impressive processes in the brain, it is nevertheless possible to relate them to a series of brain states.

The researchers of the working group "Theory of Neuronal Dynamics" at the Max Planck Institute for Brain Research have now shown how a single network model can adequately represent the diverse states of neuronal activity.

To do so, they extended the "Stabilized Supralinear Network Model" (SSN) that researchers have previously used to successfully display important functions of the visual system.

The two scientists now found out that the possibilities of the SSN are not yet exhausted, and showed when the SSN can also describe bistable, oscillating and persistent states. These results pave the way for a unified theory of cortical function.

Kraynyukova: "The structure of a network is closely related to its ability to create certain functions. Our results accurately describe this relationship and, allow us to obtain information about the structure of the network based on its activity.”

Tchumatchenko says "This theory is very promising. It can now even realistically represent brain functions such as short memory and decision making."

Weitere Informationen:

http://www.pnas.org/content/early/2018/03/06/1700080115.short?rss=1

Dr. Arjan Vink | Max-Planck-Institut für Hirnforschung
Further information:
http://www.brain.mpg.de/

More articles from Life Sciences:

nachricht Dalian Coherent Light Source reveals hydroxyl super rotors from water photochemistry
19.03.2019 | Chinese Academy of Sciences Headquarters

nachricht Microbes can grow on nitric oxide (NO)
18.03.2019 | Max-Planck-Institut für Marine Mikrobiologie

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Heading towards a tsunami of light

Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.

"This source of radiation lets us look at reality through a new angle - it is like twisting a mirror and discovering something completely different," says...

Im Focus: Revealing the secret of the vacuum for the first time

New research group at the University of Jena combines theory and experiment to demonstrate for the first time certain physical processes in a quantum vacuum

For most people, a vacuum is an empty space. Quantum physics, on the other hand, assumes that even in this lowest-energy state, particles and antiparticles...

Im Focus: Sussex scientists one step closer to a clock that could replace GPS and Galileo

Physicists in the EPic Lab at University of Sussex make crucial development in global race to develop a portable atomic clock

Scientists in the Emergent Photonics Lab (EPic Lab) at the University of Sussex have made a breakthrough to a crucial element of an atomic clock - devices...

Im Focus: Sensing shakes

A new way to sense earthquakes could help improve early warning systems

Every year earthquakes worldwide claim hundreds or even thousands of lives. Forewarning allows people to head for safety and a matter of seconds could spell...

Im Focus: A thermo-sensor for magnetic bits

New concept for energy-efficient data processing technology

Scientists of the Department of Physics at the University of Hamburg, Germany, detected the magnetic states of atoms on a surface using only heat. The...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

International Modelica Conference with 330 visitors from 21 countries at OTH Regensburg

11.03.2019 | Event News

Selection Completed: 580 Young Scientists from 88 Countries at the Lindau Nobel Laureate Meeting

01.03.2019 | Event News

LightMAT 2019 – 3rd International Conference on Light Materials – Science and Technology

28.02.2019 | Event News

 
Latest News

Heading towards a tsunami of light

19.03.2019 | Physics and Astronomy

Dalian Coherent Light Source reveals hydroxyl super rotors from water photochemistry

19.03.2019 | Life Sciences

From foam to bone: Plant cellulose can pave the way for healthy bone implants

19.03.2019 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>