The severe motor and emotional unrest that characterizes the girl's daily life decreases a lot once she has been sitting in the Protac SenSit^® ball chair. She seeks it out spontaneously in the therapy room, as one of the first things she does. After 4-6 minutes, where she sits completely covered by the wings of the chair and silent, she begins to communicate. Her speech is clearly more cohesive and organized. The sensorimotor activities that ensue are performed much more calmly than before she was introduced to the chair. Tasks are often performed that require eye-hand coordination while sitting in the chair, which promotes the quality of her performance.