Her research focuses on the genetic epidemiology of Mendelian and complex genetic disorders. Dr. Ashley-Koch's primary interest is the genetics of psychiatric disorders, including attention deficit hyperactivity disorder, autism, and trichotillomania. She is also performing studies to identify genes involved in and essential tremor, as well as genes that modify the clinical severity of sickle cell disease. Dr. Ashley-Koch served the Center for Human Genetics as a post-doctoral fellow and research associate from 1998 to 2000.