In the western population, approximately 1% of newborns is affected by a neurodevelopmental disorder (NDD). Whereas many disorders such as blindness and deafness are commonly caused by inherited variants from parents, for NDDs most cases are due to new mutations that arise spontaneously in the child. In order to understand this striking difference we intend to investigate whether rare inherited variants in these NDD genes may have subtle effects on human health and fitness and could thereby explain why such variants occur less in the general population. This study will take approximately 2 years and will if successful will increase our understanding of the genetic causes of NDDs and may help to reduce the number of people affected by them.
