Introduction to Autistic Spectrum Disorder You are here:HomeOur ServicesDepartments and ServicesVVictorian Dual Disability ServiceVDDS Training Autism spectrum disorder is a lifelong developmental disability that affects the way a person communicates and relates to people around them. Problems with social interaction, odd and unusual behaviours and high rates of co-morbid mental health problems mean that many people with autism spectrum disorder are likely to come to the attention of mental health services. This webinar provides an introduction to the autism spectrum and an overview of the principles and problems of assessment and diagnosis.