Matthew Speltz of the University of Washington School of Medicine states that the roots of attachment therapy are traceable to psychologist Robert Zaslow and his "Z-process" in the 1970s. Zaslow attempted to force attachment in autistic children by creating rage while holding them against their will. He believed this would lead to a breakdown in their defense mechanisms, making them more receptive to others. Zaslow thought attachment arose when an infant experienced feelings of pain, fear and rage, and then made eye contact with the carer who relieved those feelings. If an infant did not experience this cycle of events by having his fear and rage relieved, the infant would not form an attachment and would not make eye contact with other people. Zaslow believed that creating pain and rage and combining them with eye contact would cause attachment to occur, long after the normal age for such developments. Holding therapies derive from these "rage-reduction" techniques applied by Zaslow. The holding is not used for safety purposes but is initiated for the purpose of provoking strong negative emotions such as fear and anger. The child's release typically depends upon his or her compliance with the therapist's agenda or goals. In 1971, Zaslow surrendered his California psychology license following an injury to a patient during rage-reduction therapy. Zaslow's ideas on the use of the Z-process and holding for autism have been dispelled by research on the