On Thursday, October 27 our first “Office Hours” webchat was held with Autism Speaks Chief Science Officer Geri Dawson, PhD, and her guest host: University of Toronto’s Steve Scherer, PhD, a world pioneer in the discovery and understanding of the genes and genetic changes that predispose to autism. Drs.

This week’s “Got Questions?” response comes from Alycia Halladay, PhD, Autism Speaks’ director of research for environmental science.

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Autism is a very heterogeneous disorder. As the grand lady of neurology, Dr. Isabelle Rapin liked to emphasize when training new students “If you have seen one child with autism, you have seen one child with autism.” This heterogeneity has made understanding causes and designing effective treatments more challenging than it would be otherwise.