Phenotypic and Genetic Factors in Autism Spectrum Disorders

Participation in this research study involves two research visits, at least one of which is
at Children's Hospital Boston. The first visit lasts about 4-6 hours. On this visit, the
child will work with a research assistant on a few different cognitive assessments while one
or both parents answer interview questionnaires about the child's development, along with
other family history information. The second visit at the hospital lasts about 2 and a half
hours and involves medical history and family history questionnaires, as well as height,
weight, and head circumference measurements and a blood draw from each family member. In
addition, digital photographs will be taken of each family member and a 3-D picture of the
child's face will be taken. Shortly after the visits, participants will receive a research
report of our observations. These results include cognitive, behavioral, developmental, and
social findings. The total time commitment for the study is 6 to 8 hours.

Inclusion Criteria:

- Diagnosis of autism spectrum disorder or suspected diagnosis based on clinical genetic
test results (e.g., variant diagnosed via chromosomal microarray)

- Age ≥ 18 months

Exclusion Criteria:

- Presence of a metabolic disorder

- Acquired developmental disability (e.g., birth asphyxia, trauma-related injury,
meningitis, etc.) or cerebral palsy