CASE STUDY: THE EFFECTS OF RESPONSE INTERRUPTION, DRO AND POSITIVE REINFORCEMENT ON THE REDUCTION OF HAND-MOUTHING BEHAVIOR.

SELF-injurious behavior; REINFORCEMENT (Psychology); PEOPLE with developmental disabilities; DEVELOPMENTAL disabilities; BEHAVIOR therapy; BEHAVIOR modification

The present study was designed to determine the effects of response interruption and differential reinforcement of other behavior (DRO) on the reduction of hand-mouthing behavior in a quadriparesic adult male client who functions at the profound level of metal retardation. In order to determine the effectiveness of the treatment package, a withdrawal design was used in which baseline (A) and treatment (B) conditions were alternated in an ABAB sequence. The treatment phase consisted of two 10-min treatment periods per day for four consecutive days. Two treatment/withdrawal rotations were followed by nine follow-up observation periods. A preliminary fading process was started following the follow-up periods, which included removal of the reinforcer. Hand-mouthing was reduced by 80% through the use of response interruption and DRO. Hand-mouthing continued to decrease during the nine follow-up observation periods and formal fading procedure. Implications for the extended use of such nonaversive procedures to decrease hand-mouthing behavior in persons with developmental disabilities are discussed. [ABSTRACT FROM AUTHOR]

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