Once again, there's been a signficant shift in scientific thinking about the fixed nature of brain development. The idea that the brain can't be changed after early childhood has been turned on its head in the past few years, and a new research study demonstrates how just how important that might be for the neurodevelopmental disorder, Fragile X syndrome (FXS). FXS is a genetic disorder, caused by disruption of a gene on the X-chromosome, that results in intellectual disability, beha