Helen Marwick is a developmental psychologist in the School of Education, who lectures on child development and on autism, and has researched extensively on social interactions, communicative development and interpersonal understanding. She is currently involved in research on intersubjectivity and social engagement, and on conceptual development within autism spectrum disorders, and has developed the Joint-Play Intersubjectivity Assessment Method (JPIAM), also known as  ‘Playboxes’, which promotes and assesses active interpersonal engagement and communication, and which is being used in a number of school settings across Scotland and internationally. Helen is a member of international research groups investigating neurodevelopmental disorders and social communication, and is a regular invited addressee and keynote speaker at international conferences.