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Principal Investigator:






Greg Wallace is an Associate Professor in the Department of Speech, Language, and Hearing Sciences at The George Washington University. He received his Ph.D. from the Institute of Psychiatry, University of London in the UK, and he completed his postdoctoral training at the National Institute of Mental Health, NIH in Bethesda, Maryland.

Lab Manager:

Alex Job Said is a senior majoring in Neuroscience and minoring in Biology and Psychology. He was born in Rio de Janeiro, Brazil, and is interested in the causes and long-term effects of cerebral palsy, autism, microcephaly and the broader autism phenotype. At GW, Alex is the president/captain of the men’s polo team and the co-founder of the BRASA/Brazil Club. He loves to play soccer, cycle, workout, horseback ride and is a keen nature enthusiast and stock market investor. 

Professional Research Assistant:

Colin Weiss is a research assistant who graduated with a bachelor’s degree in psychology from GW, and specializes in data gathering and literature reviews. His preferred topics of interest include the neurology of autism and how differences in function both within the spectrum and outside of it come to exist. Prior to working at LADN, Colin worked at the consulting firm ICF International, where he helped build the Self-Sufficiency Research Clearinghouse, a major research database informing matters of family self-sufficiency.  He has also aided the Organization for Autism Research (OAR) in preparing their Guide to Safety, part of their "Life's Journey through Autism" series of informational guides.

Graduate Students:

Sanjana Jayaram is a second year graduate student in the GWU Speech-Language Pathology Master's program. She originally is from Philadelphia, PA and obtained her Bachelor's degree at Temple University. Before starting her Master's, she has worked at a non profit organization for individuals with ASD for 5 years and enjoyed every minute of it. She looks forward to becoming an SLP and continuing to grow her love for the field!

Jessica DeFreeuw is a second year graduate student in the GWU Speech-Language Pathology Master's program. She has lived in 12 countries, but before moving to D.C., she called Richmond, Virginia "home." She enjoys reading books and exercising regularly. She and her husband, Jonathan, have a very spoiled black cat named Newt.

Hi, I'm Lauren Williamson. I am getting my Masters in Speech Language Pathology. I really enjoy working with children and adults with disabilities.  In my free time, I like to do yoga, go hiking, and drink a lot of tea.

Undergraduate Students: 

Charlotte Gaynor recently graduated GW studying Neuroscience, Math, and STEM Education. Her post graduation plans are still unclear but she’s hoping to pursue a graduate degree and go into academia. She’s interested in studying language in kids with autism. In her free time she enjoys rock climbing and spending time with friends.

Lauren Sadowski is a junior at GW double-majoring in Psychology and Speech, Language and Hearing Sciences with a concentration in Communication Sciences and Disorders. She has been working with children and young adults with developmental disorders since high school, and has an interest in improving employment rates in adults with autism. Lauren enjoys snowboarding, cooking, and going to museums in D.C., and hopes to eventually go to graduate school for Speech-Language Pathology.


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