The visual field is a tunnel about as wide as their shoulders and extending out about as far as their hands can reach, which is about 1 yard or meter in front of their face.
They may hold an object that is placed in their hand until it drops or falls out of their hand without being noticed.
Visitors can be encouraged to bring familiar things from home or outdoors. You will need to warn them that, even though it is rare within ACL 1, people do put anything that is in their hands into their mouths unexpectedly.
In residential facilities, a major effort is necessary to protect essential possessions. All over the world, a few ordinary inexpensive objects disappear or appear in mysterious locations every day. These phantom changes in the location of objects will be the bane of your existence when you leave sensory stimulation supplies at bed side. A smart planner has back-up supplies at the ready. The reason for these peculiar movements of objects is that people with a cognitive disability do not comprehend possessions until ACL 4. They are unable to answer the basic question: Is this yours?