Movement information enters the scale in ACL 1.6. The person becomes aware of gravity and their position in space. They are aware of when they are being moved by caregivers and will assist and cooperate. Rolling is important to the person in ACL 1.6. Being able to continue rolling with the help of gravity is paid attention to. Within ACL 1.8, the person is able to lift a limb or their body part when prompted by caregivers to assist with their self-care tasks.
Within ACL 1 High, they can track sensory cues. In ACL 1 High, their response time will be slow. Be prepared to wait at least 20 seconds otherwise you may miss their response. Although their reaction is slow, be prepared for startle reactions which may be fast and can cause injuries.