How are you? Definite diagnosis of Cerebral palsy warrants s full neurological exam and diagnostic tests such as blood tests and imaging studies like CT scan or MRI of the head, EEG and vision and hearing tests. This link may help: http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001734/
The following organizations are also good resources for information on cerebral palsy:
1. National Institute of Neurological Disorders and Stroke - www.ninds.nih.gov/disorders/cerebral_palsy/cerebral_palsy.htm
2. United Cerebral Palsy - www.ucp.org
3. U.S. Centers for Disease Control and Prevention - www.cdc.gov/ncbddd/dd/ddcp.htm
Take care and best regards.