The delivery of food contingent on 10 s of consecutive toy engagement resulted in a decrease in engagement and a corresponding increase in other responses that had been previously reinforced with food. Similar effects were not observed when tokens exchangeable for the same food were delivered, suggesting that engagement was disrupted by the…

This study presents three cases of adults with profound developmental disabilities in which assessment data showed that self-injurious behavior occurred in at least two test conditions and describes a method used to analyze the effects of treatments based on hypotheses of multiple control. (Author/DB)

This study effectively eliminated face-slapping behavior in a 10-year-old boy with severe developmental disability and autistic characteristics. The subject wore wrist weights for up to 30 minutes each day. Face slapping did not occur during a follow-up check conducted five months after study completion. (Author/DB)

This study compared differential reinforcement of other behavior (DRO) and noncontingent reinforcement (NCR) in the reduction of self-injurious behavior in three adult females with severe or profound mental retardation. Both procedures were highly effective in reducing self-injury, with NCR less limited than DRO. (Author/DB)