A first glimpse at healthy brain and behavioral d...( time averaging the performance of a wh...),Health

time, averaging the performance of a whole population. "We don't know whether everyone's performance improves more slowly in adolescence, or whether some children continue to improve while others do not, or whether our standard tests can measure what really changes in adolescence," she notes. "As we follow these children over time, we will have a better understanding of what happens in adolescence."

"In the past, studies of structural brain development and often studies of cognitive development were performed on samples of convenience that weren't necessarily representative of the overall population," Waber adds. "This study provides information on a much more diverse and representative sample, and a much larger one than previously available."

Other components of the NIH MRI Study of Normal Brain Development are structural brain imaging with MRI, magnetic resonance spectroscopy (MRS), and diffusion tensor imaging (DTI) to study the growth of different brain structures and the formation of connections between them, and even changes in brain chemistry. The ultimate goals of the project are to provide an atlas of the development of the healthy child's brain and to link the imaging findings with neurobehavioral function.

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Contact: Alissa Rooney
alissa.rooney@childrens.harvard.edu
617-355-6420
Children's Hospital Boston
18-May-2007

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