Connectivity in Brain and IQ Found Correlated Using New Brain Mapping Technique


Researchers at the University of Cambridge have found a correlation between intelligence and the connection of different regions of the human brain a.k.a. a connectome. This has been studied with the help of a relatively simple and new technique of mapping the brain’s wiring. The analysis of traditional brain scans taken with the help of a magnetic resonance imaging (MRI) scanner could help to build a connectome map, according to a research published in biweekly peer-reviewed scientific journal, Neuron. Scientists at the University of Cambridge had been accompanied by those at the National Institutes of Health (NIH) to complete the research.

Connectivity in MSNs in Brain Regions Linked to Higher Order Functions

In the research study, the scientists used the comparison of the brains of 296 adolescent volunteers typically developing, where the validation of the results was conducted in a group of another 124 volunteers. Although a traditional 3T MRI scanner was used for the study, a recent installation of the Siemens 7T Terra MRI scanner, a more powerful equipment, is anticipated to allow a much more precise brain mapping in the technique used.

In order to verify the assumption of morphometric similarity, MRI data of 31 juvenile rhesus macaque monkeys available to the public was compared to connectivity estimates of the ‘gold standard’ in that species. The researchers were then able to build a map that shows how well the major connection points between various brain network connection points were connected. However, much of the map building was supported by the use of morphometric similarity networks (MSNs).

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