NEW YORK – Infants with high polygenic risk scores for autism spectrum disorder exhibit traits associated with the condition, a new study has found.
Autism spectrum disorder is highly heritable and both rare and common variants are associated with it. Signs of autism spectrum disorder typically begin to manifest by three or four years of age, but as that is after a time of accelerated brain development, scientists are searching for ways to spot those at risk at an early age when interventions may be the most effective.