One of three general approaches to developmental cognitive neuroscience that assumes postnatal functional brain development involves a process of organizing inter-regional interactions so that the response properties of a specific region may be determined by its patterns of connectivity to other regions and their current activity states. It means that the brain is not initially organized into distinct modules and only becomes so during development as an emergent property of both biological maturation and experience.
See Developmental cognitive neuroscience, Maturation versus learning debate, Maturational perspective/approach, Modularity, Skill learning hypothesis/approach