When used in conjunction with the attachment disorder later in life.
In custody disputes, the phrase psychological parent may come into play in cases involving gay unions, where a child may have bonded himself or herself to a nonbiologically related adult who provides love, nurturing and care. Adults in gay unions often can meet the four-prong test that makes them a child’s psychological parent.
The determination that a person is the psychological parent may give him or her third parties the right to access a child at a fixed times, dates and durations.
Courts are very reluctant to separate parents from their interest in maintaining "...the ties that connect them to adults who love and provide for them." Love, after all, is not genetic.
See also Visitation Rights, Grandparents’