The new study investigated the differences and similarities between the two most complex systems in existence, on a completely different scale: space and galaxy, brain and neurons.
They found that the scale was clearly different, but the structure was very similar. In some cases, the two systems looked more alike than the parts that made up the system.
It suggests that very different physical processes can lead to very similar complex and organizational structures.
For example, the human brain works because of a network of about 70 billion neurons that make up it together. It is thought that there are at least 100 billion galaxies in the universe.
In each system they are assembled together into a complex web or network and distributed over long filaments and nodes connecting them. These diffuse nodes are familiar with photos of the universe and the brain, explaining some of the superficial similarities of the images.
However, in each system, these threads occupy only about 30% of the mass. In each, about 70% of the mass is actually made up of parts that appear to be passive. It is the water of the brain and the dark energy of the universe.
To further investigate these similarities, the researchers compared the way galactic networks form with parts of the brain. They tried to understand how the problem spreads across two different networks.
“We calculated the spectral densities of both systems. This is a technique often used in cosmology to study the spatial distribution of galaxies,” said Franco, an astrophysicist at the University of Bologna who worked with Alberto Feletti, a neurosurgeon at the University of Verona. Vazza said. .
“Our analysis has shown that the distribution of fluctuations within the cerebellar neural network on the scale of 1 micrometer to 0.1 millimeter follows the same progression of material distribution in the cosmic web, but of course on a larger scale at 5 million to 500 million light years”.
They also investigated how neutrons and galaxy webs connect. The system once again found striking similarities that looked more alike than its components. To do this, we compared the average number of connections between each node and the cluster method.
“Once again, structural parameters have confirmed an unexpected level of agreement. Perhaps the connectivity within the two networks will evolve according to similar physical principles, despite the surprising and obvious differences between the physical forces that regulate galaxies and neurons. I said.
“These two complex networks show more similarities than are shared between the cosmic web and galaxies or between neuronal networks and neuronal bodies.
A paper was published in the journal describing the findings of the study,’Quantitative Comparison of Neuronal Networks and Space Web’ Pioneer in physics.