Sounds are more than a sensation. Common sounds, such as bells ringing and clapping hands, can be translated by the person into forms of communication. The meaning of the sound will probably be related to their personal history and not the current situation.
Their current postural position is compared to expected changes in their postural position when they transfer to nearby beds, wheelchairs, standing frames and arm chairs in front of tables. Their attention to those cues is required to adjust their body parts to fit into the contours of different pieces of furniture. A lack of attention will result in the caregiver moving for them or stopping the transfer.
Using strong color contrasts between different objects is more apt to capture their attention, e.g. a white dinner plate on a bright red placemat.