Under DSM V, the primary symptoms of ASD falls into two domains:
(1) Persistent deficits in social communication and interaction,
(2) Restrictive or repetitive patterns of behaviours, interest and activities. Over- or under-sensitivity to sensory input.
These domains greatly categorized the below disorders together:
• Autistic Disorder,
• Asperger’s Disorder,
• Childhood Disintegrative Disorder (CDD)
• Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS)
These disorders are varied to a certain degree. However, they shared the similar domains. Hence, they all fall into Autism Spectrum Disorder.