Researchers at Eötvös Loránd University have found evidence of what affects intelligence

Human intelligence depends on what other parts of the brain the brain’s hippocampus is connected to, according to the latest study by mathematicians of the PIT (Protein Information Technology) Bioinformatics Group of the Eötvös Loránd University (ELTE) Faculty of Science (TTK) involving more than 400 subjects. .

Researchers have shown that the presence of certain neighbors in the hippocampus has a good or bad effect on intelligence. Research into the relationships between different biological and psychological characteristics and the size of individual areas of the human brain has long been important in brain research. The size of the brain areas was examined earlier at autopsy and later by various medical imaging procedures. Today, with the development of diffusion MRI techniques, instead of rough sizing, the relationships of individual brain areas can be analyzed in detail. This is important because the 80 billion neurons of the brain, ie neurons, are not capable of much, individually, but they are also capable of creating great works of human culture through their many hundreds of billions of connections, ELTE said.

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According to the study report, the interrelationships between intelligence and different brain areas may shed light on which areas of brain cooperation result in a difficult-to-understand phenomenon called human intelligence.

Mathematicians of the Bioinformatics Group of the Eötvös Loránd University TTK – Researchers Máté Fellner and Bálint Varga and Professor Vince Grolmusz – the neighbors of the most studied and best-known part of the brain, the tiny seahorse-shaped hippocampus, and the relationships between intelligence were studied.

The study mapped the brain connections of 414 subjects and identified the most common neighboring sets of the hippocampus, i.e., the brain areas that are connected to the hippocampus in most subjects. They then looked at whether subjects who achieved good or bad results on different cognitive tests were characterized by these common neighbor sets. They found that the presence of certain neighbors has a good or bad effect on intelligence, respectively.

Neighbors of such important brain areas, as well as relationships that have bad or good effects on mental abilities, have never been found by researchers. According to the communication, the results of the survey are also significant because it contains only findings that are present in at least 80 percent of the 414 subjects.

The study of mathematicians of the Eötvös Loránd University TTK PIT Bioinformatics Group was published in the scientific journal Scientific Reports.

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