Study links intelligence to overall brain activity, not one region

Researchers have found evidence for a theory that views intelligence as a property of how the brain functions as a whole, rather than relating it to a specific cognitive function or brain network.

Brain networks keep changing

The brain can rewire its networks based on experience, habits and learning. This ability is called plasticity.

According to the Network Neuroscience Theory, intelligence is said to reflect how brain networks are coordinated and adapted to solve the diverse problems one encounters in life.

Sleep helps brain networks reset

During sleep, brain networks organise information and clear out waste, helping memory and focus the next day.

The researchers at the US' University of Notre Dame analysed brain imaging and cognitive data of 831 adults participating in the Human Connectome Project, an initiative focused on mapping the human brain and connecting its structure to function and behaviour.