Autism spectrum and communication disorders are complex conditions that can cause social, language and behavioural problems in childhood. These children need much support from families and the community. However, still very little is known about what causes these disorders and how individual children will do in the future.

Many studies show that communication disorders may be related to a biological marker (ie something detected on laboratory tests). This study will look at these markers by studying blood tests (looking at various things including genetics, gastro-intestinal function and immune levels) as well as neurological tests including an EEG (electroencephalogram) and ABR (auditory brainstem evoked response). Both the EEG and ABR record brainwave activity picked up by electrodes taped to the head. Both tests are painless.

It is important to understand more about the underlying cause in communication disorders so that we can look for more specific treatment in these disorders. We also want to see if children with certain test results have different long term outcomes. This information will be important for families and therapists.

Age ranges needed: Young children (ages 2-4 yrs)

Diagnoses needed: Those who have recently been diagnosed with autism, pervasive developmental disorder or severe language disorders.

Length of time required: Developmental tests monitoring language and socialisation skills; laboratory (blood) tests looking at various substances including genetics; neurological tests (ABR and EEG) looking at brainwaves.

Location of testing: Princess Margaret Hospital for the laboratory tests and neurological tests; State Child Development Centre for the initial interview and developmental tests.

Contact: If you wish your child to participate, please contact Dr Wray at the State Child Development Centre on 9481 2203 or e-mail: john.wray@health.wa.gov.au