Self-injurious behavior (SIB) is a disorder typically associated with developmental disabilities. However, throughout early childhood, some typically developing children also display behavior that is topographically similar to SIB but does not cause injury, commonly referred to as "proto-injurious behavior" (PIB). To date, little…

Problem behavior can interfere with learning, the development of appropriate skills, and socialization in persons with developmental disabilities. In severe cases, problem behavior could result in life-threatening injury. For one 21-month-old participant diagnosed with autism engaging in severe problem behavior for whom reinforcement-based…