Answer:
Contact-maintaining.
Explanation:
Contact-maintaining is the term used to describe the situation where a child shows resistance to leaving his or her mother (or a responsible adult) and when he or she needs to go out looking for a way to maintain physical contact with the mother. An example of this can be seen in the question above, where Sally's son, whenever he walks away from her, comes back to where his mother is, touches her and walks away again.
