A critical review of explanatory models for self-mutilating behaviors in adolescents

The present paper presents critical reviews of studies that have explored models of adolescent self-mutilation. Current definitional problems were addressed, as well as a proposal for a classification system of self-mutilation. Seven historically significant explanatory models were included, the sexual/sadomachistic model, the depersonalization model, the interpersonal/ systemic model, the suicide model, the physiological/biological model, the affect regulation model, and the behavioral/environmental model. Each model was briefly described, and studies were critiqued according to methodology, research design, and basis upon which authors provided support or rejection of a model. Suggestions for improvement in the literature were made throughout the paper. Studies often overlapped within the models, and the strongest empirical support was shown for the behavioral/environmental model, which included components of the affect regulation model, interpersonal/systemic model, and depersonalization model. Explaining adolescent self-mutilation is a complex task, and evidence provided in this paper suggests that aspects of several models, or an integration of models, likely contribute to the understanding of this phenomenon. (c) 2007 Elsevier Ltd. All rights reserved.