We all know that intelligence level of one individual is different from the other individual. Some people are smarter and more intelligent than others. But why? Probably because the brains of intelligent people are wired in a different way compared to average people, as per claims made a new study carried out by scientists from the Goethe University Frankfurt.
In this latest study, Kirsten Hilger, Christian Fiebach and Ulrike Basten from the Goethe University Frankfurt tried to investigate the neurobiological basis of human intelligence. Researchers say that the brain is functionally organized into modules or sub-networks that are more strongly interconnected among themselves, but have weaker connections to brain regions from other modules.
These researchers used functional MRI brain scans of over 300 people, and then combined these scans using modern graph theoretical network analysis methods. They found that in more intelligent persons, some specific brain regions are more strongly involved in the exchange of information between different sub-networks of the brain.
Earlier in 2015, the same group had published the findings of another study in the journal Intelligence. In that study, the team identified different brain regions associated with human intelligence. One of these regions is the prefrontal cortex. Researchers claimed that activation changes in prefrontal cortex are associated with individual differences in intelligence.
Researchers suggested that in smarter people, two brain regions—the anterior insula and the anterior cingulate cortex—are connected more efficiently to the rest of the brain. These two brain regions, according to researchers, are responsible for cognitive processing of task-relevant information.
“The different topological embedding of these regions into the brain network could make it easier for smarter persons to differentiate between important and irrelevant information – which would be advantageous for many cognitive challenges,” said principle investigator Ulrike Basten.
The detailed results of the study were published in Scientific Reports.
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