Athetoid cerebral palsy, sometimes abbreviated ADCP, results from damage to the basal ganglia of the brain which controls motor function. About 25% of cerebral palsy patients are affected with athetoid cerebral palsy. The affected individual is unable to control muscle tone and has difficulty with fine motor skills. Balance, posture and depth perception may also be impaired. Diagnosis is typically made within 18 months of birth and is based on assessment of developmental milestones and neuroimaging techniques. There is no cure for athetoid cerebral palsy, but treatment includes physical therapy and sometimes speech therapy depending on which muscles are affected in each individual.