Psychiatric care could be made more effective due to a recent report which has found different types of brain activity in people with dementia.
Researchers at the VU University Medical Center in Amsterdam made the discovery by applying graph theory, which is a mathematical technique, to analyse the extent of communication between areas of the brain.
Willem de Haan, who led a team of researchers, commented: "By applying concepts from this theory to brain recordings, we can study the dynamic and distributed nature of mental activities.
"The underlying idea is that cognitive dysfunction can be illustrated by, and perhaps even explained by, a disturbed functional organisation of the whole brain network."
He added that the results, which identify a disparity between the two types of brain activity, were largely expected.
Dementia is a cognitive disorder, which affects people who are older in a variety of ways. Symptoms include inability to solve problems, confusion and memory loss.