CP is a disorder affecting movement.
Cerebral palsy ( CP ) is a group of permanent movement disorders that appear in early childhood . Other symptoms include seizures and problems with thinking or reasoning , each of which occurs in about one third of people with CP . CP is the most common movement disorder in children . Epileptic seizure . The outward effect can vary from uncontrolled jerking movement ( tonic-clonic seizure ) to as subtle as a momentary loss of awareness ( absence seizure ) . Movement disorders can be defined as neurologic syndromes with either an excess of movement or a paucity of voluntary and involuntary movements , unrelated to weakness or spasticity .