Segregation of brain systems is associated with cognitive and eye movement performance in the general population

The human brain is a large‐scale network, which contains multiple segregated and functionally specialized systems. The organization of brain systems has been reported to change in a dedifferentiated way with increasing age. We investigated how age and sex are associated with brain system segregation during resting‐state in a large population‐based sample. Further, we analysed whether interindividual differences in the amount of brain system segregation are associated with cognitive and eye movement performance.