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June 21, 2013

Solitary mutation destroys key 'window' of brain development

Scientists from the Florida campus of The Scripps Research Institute (TSRI) have shown in animal models that brain damage caused by the loss of a single copy of a gene during very early childhood development can cause a lifetime of behavioral and intellectual problems.

The study, published this week in the Journal of Neuroscience, sheds new light on the early development of neural circuits in the cortex, the part of the brain responsible for functions such as sensory perception, planning and decision-making.

The research also pinpoints the mechanism responsible for the disruption of what are known as "windows of plasticity" that contribute to the refinement of the neural connections that broadly shape brain development and the maturing of perception, language, and cognitive abilities.

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