Since specific biological indicators have yet to be discovered, autism is currently defined merely in terms of the behavioural models it displays. These characteristics are outlined in the generally-accepted international diagnosis and classification systems, such as the DSM IV, compiled by the American Psychiatric Association and the ICD 10, created by the World Health Organisation. More »

It is currently widely accepted that the disorders included within the autistic spectrum (according to current international classification: "Generalised Development Disorders") are neuropsychiatric states that present a wide variety of clinical expressions, and are the result of multi-factorial development dysfunctions in the central nervous system. More »

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