... withdrawalbehaviors. Acting out behaviors mayinclude: inconsolable crying, fussing,frequent tantrums, pushing, hitting,biting other children, frequentlythrowing things or knocking thingsdown, destroying materials, ... R.,(2000). Infant mental health: Origins and emergence of aninterdisciplinary field. WAIMHhandbook of infant mental health Vol.1: Historical, cultural, and international perspectives on infantmental ... disciplines of childdevelopment, psychiatry, social work,psychology, health, special education and others involved in assessing and treating young children, in both mental health and health...