Many have trouble with quick or precise movements, like writing or buttoning a shirt. Some also have intention tremor, in which a voluntary movement, like reaching for an object, sets off a trembling in the limb which grows in intensity as the person nears the target object. Mixed CP involves two or more types of cerebral palsy in the same person. Back to Top Associated Disorders Many persons with CP have no associated medical disorders. However, some also have seizures and impaired intellectual development, problems with attentiveness, activity and behavior, and vision and hearing.
Mental impairment is most common in children with spastic quadriplegia.
Up to half of all children with cerebral palsy have seizures , in which uncontrolled bursts of electricity disrupt the brain's normal pattern of electrical activity. Seizures that recur without a direct trigger, such as a fever, are classified as epilepsy. They typically cause the patient to cry out and are followed by unconsciousness, twitching of legs and arms, convulsive body movements and loss of bladder control. Partial seizures are confined to one part of the brain, and may be either simple or complex. Simple partial seizures cause localized symptoms - muscle twitches, chewing movements and numbness or tingling.