Agitation, wandering or pacing is common. Moods are even more exaggerated. A person may be uncooperative, hostile or aggressive, although some people become serene and peaceful. Language and speech troubles worsen. Ability to add, subtract or do other calculations is lost.
Sleep cycles fall out of sync.
A person may sleep at odd hours and wander at night. Stories or actions are repeated monotonously. At this point, patients are totally dependent and require constant care. Confusion is acute. Physical rigidity and seizures may occur.