Abstract
ABSTRACT Pica is a life-threatening behavior that is relatively common among individuals with intellectual and developmental disabilities. Pica can be conceptualized as a response chain in which the pica item acts as a discriminative stimulus for the next response (i.e. picking up the pica item), which itself acts as a discriminative stimulus for the final response (i.e. consumption). Interventions that disrupt this response chain and alter the discriminative properties of the pica stimulus may be clinically indicated. Preliminary research supports response-interruption and redirection (RIRD) with differential reinforcement of alternative behavior (DRA) as an effective intervention for pica. We evaluated this procedure in an inpatient unit with a young boy with who engaged in pica. Our outcomes provide additional support for DRA with RIRD as an effective pica treatment.
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