Researchers at Goethe University Frankfurt in Germany looked at brain scans of more than 300 participants, while simultaneously consulting graph theoretical network analysis methods, to try to determine what helps form human intelligence.

Explaining how the brain's many regions interact with others to varying degrees — think of smaller social groups within broader society— the researchers more specifically sought to understand whether the wiring of certain regions was different among people depending on their level of intelligence.

"This is similar to a social network which consists of multiple sub-networks (e.g., families or circles of friends). Within these sub-networks or modules, the members of one family are more strongly interconnected than they are with people from other families or circles of friends. Our brain is functionally organized in a very similar way," the researchers explain in a university release.