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ToddStark May 15th, 2009 04:35 PM

Brain maturity brings increasing long range functional connectivity
Children's brains and adults share the same 4 core networks, but children have more highly locallized brain connectivity whereas adult brains show more long range connectivity with significant functional effects, moving toward a more distributed model. But even in the children, there were still enough long distance connections that the "small world" model still seemed to apply.


"Instead of having networks made of brain regions that are distant from each other but functionally linked, most of the tightest connections in a child's brain are between brain regions that are physically close to each other.

...clearly shows a switch from localized networks based on physical proximity to long-distance networks centered on functionality.

...Scientists already knew that children had many fewer long-distance links among brain regions than adults, but when they looked more closely they found there were enough of these links and nodes with multiple connections to establish small-world organization."
Fair et al. Functional Brain Networks Develop from a “Local to Distributed” Organization. PLoS Computational Biology, 2009; 5 (5)

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