The Cognitive Development Lab

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People of the Lab

PhD Student

Marissa Hartston

I am a Speech and Language Therapist (SLT) with 16 years of clinical experience within the field of Autistic Spectrum Disorders. My expertise lies in the field of non-verbal communication, Alternative Communication Systems and assessment of Autism. I am qualified to carry out the ADOS assessment and have been involved in many research projects through ADOS evaluations.

I teach the Autism course within the faculty of Speech and Language Therapists and supervise SLT students and therapists within the field of Autism.


I study face processing in individuals diagnosed with ASD. Specifically my studies track the developmental trends in the interactive relations of the perception of facial identity and facial expressions, both in typically developing children and in those diagnosed with autism.