Those using screens for more than seven hours a day showed thinning of the brain cortex, something that usually happens later in adolescence.

They also found that the brain cortex of dolphins such as the bottlenose had the same convoluted folds that are strongly linked with human intelligence.

He noted that the majority of the cases their brain ventricles were enlarged without destruction of the brain cortex.

Tertiary brain cortex collects the interpretations from the secondary cortexes and creates a coherent world view of it.

The newest layers are devoted to the most recent acquisitions, like bipedalism, grip of precision, large brain cortex, language and other abstract or recursive cognitive processes.