Catamenial and behavioral records of nine women with mental retardation who exhibited self-injurious behavior (SIB) were analyzed for six months. Analysis confirmed that SIB was cyclic across the menstrual cycle, with the highest frequency occurring in the early follicular and late follicular phases. (Author/JDD)

The prevalence of compulsions in 210 adults with severe/profound mental retardation was studied. Prevalences were as follows: stereotypy (60.9 percent), self-injury (46.6 percent), and compulsion (40 percent). The occurrence of compulsions was positively associated with the occurrence of stereotypy, self-injury, and stereotypy plus self-injury.…

The dynamics of self-injurious behaviors were examined in 8 adults with mental retardation. Analysis of trajectories of the arm movements and impact forces of head blows found a high degree of cycle-to-cycle consistency in the qualitative dynamics of limb motions, indicating the motions are often stereotyped in nature. (Contains references.) (CR)

A review of the use of psychotropic medications for people with developmental disabilities is presented. Results suggest that prescribing drugs based on topographical features of the problem behavior, without considering the function the behavior serves for the individual, contributes to variability in clinical response. Functional analysis of a…