1. Autistic disorder Asperger's syndrome. Childhood disintegrative disorder. Rett syndrome Pervasive development al disorder (Lauritsen, 2013) Autism spectrum disorder (ASD) is a lifelong developmental condition that affects an individuals interaction to people and environment. The word 'spectrum' describes the range of difficulties and degree of affectation. The main areas of difficulty includes communication, social interaction and repetitive behaviours.
2. unusual sensory interests sensory sensitivities intellectual impairment tantrums People with Autism Spectrum Disorder may manifest: (Lathe, 2006) (Australian Bureau of Statistics, 2011)