1.2. Analyse the main diagnostic features of autism spectrum conditions, commonly known as the “triad of impairment”
Autism is a lifelong developmental disability that affects how a person communicates with, and relates to, other people. It also affects how they make sense of the world around them. It is a spectrum condition, which means that, while all people with autism share certain difficulties, their condition will affect them in different ways. Some people with autism are able to live relatively independent lives but others may have accompanying learning disabilities and need a lifetime of specialist support. People with autism may also experience over- or under-sensitivity to sounds, touch, tastes, smells, light or colours.

Social and Emotional
People with ASD have no distinguishing physical features they are often viewed as different because of their unusual social behaviour and interactions.   Children with ASD have impaired social behaviour:-
-Inability/lack of desire to interact with peers.
-Lack of appreciation for social cues.
-Socially and emotionally inappropriate behaviour
  * Deflects in ability to communicate effectively with other people.
  * Cannot read between the lines of what people mean.
  * Talks about own interests regardless of the listeners response.
  * Makes factual comments inappropriate to context.
  * Communicates for other needs such as for social engagement.
  * People with autism have difficulty understanding verbal & non-verbal communication, they are unable to 'read' facial expression, gestures and social cues.

Language and Communication
  * Thought processes are rigid, not adaptable to change.
  * Play patterns are also structured, stereotypical and repetitive.
  * Suggestions for extending this form of play may be strongly resisted.
  * When routine is broken/disturbed, difficulties may arise, such as tantrums. Can be caused by a visit from a stranger into the class, trips out, walks...