Children are born apparently normal, but then begin to deteriorate by age of 1 to 3 years
• Always presents before 36 months of age,
• These children may have some speech developmental and social interactive regression, usually around 18 months of age.
The diagnosis of childhood autism must meet the specific DSM IV criteria and will therefore present with poor eye contact, pervasive ignoring, language delay, and other features.
• Per definition, these children will have a severe impairment in speech, communication, or social interaction.
• Many of them will be completely non-verbal and “in their own world.”