This was a MRI-derived information about brain size in connection with cognitive performance test results
Indo-Asian News Service Dec 02,2018 17:44 PM IST
A bigger brain alone cannot guarantee you a pass to the best jobs in the world as researchers have found that an increase in brain volume contributes very little to a person’s intelligence and educational attainment.
Representational image. Flickr
The study, published in the journal Psychological Science, was based on MRI-derived information about brain size in connection with cognitive performance test results and educational-attainment measures obtained from more than 13,600 people.
The researchers found that a positive relationship does exist between brain volume and performance on cognitive tests, but size was far from everything — explaining only about two per cent of the variation in smarts.
«On average, a person with a larger brain will tend to perform better on tests of cognition than one with a smaller brain. But size is only a small part of the picture, explaining about two per cent of the variability in test performance,» said lead researcher Gideon Nave, Assistant Professor at University of Pennsylvania in the US.
