Self-injurious behavior (SIB), such as self-biting and head banging, has been reported to occur in approximately 10% of captive, individually housed nonhuman primates. Accounts of the etiology of SIB in primates range from ecological to physiological. However, to date, no research has examined the possible influence of social consequences…

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)