Within ACL 3.2, equivalent cues include objects that can be held and used to produce an effect on another surface. The surface can be the person's skin, their teeth and hair, a piece of paper, a counter top or a table top. The cues that capture attention are both the object in their hand and the surface to have an effect upon.
The effect of the motion must be perceivable. When lotion is applied to the skin, an opaque colour that can be seen is apt to capture attention better than transparent oils that soak into the skin rapidly.
The cause and effect relationship is evaluated by the person who has synthesised the information. The synthesis is a new unit of information created by the person. The person sustains their sense of identity by evaluating and comparing the present with their prior experiences. Memories of similar experiences seem to be stored in topic specific locations in the cortex. The collected thought processes are used to make a choice about sustaining their attention.