Vollmer T R, Iwata B A, Zarcone J R, Smith R G, Mazaleski J L
Department of Psychology, Louisiana State University, Baton Rouge 70803.
J Appl Behav Anal. 1993 Spring;26(1):9-21. doi: 10.1901/jaba.1993.26-9.
Because there are potentially serious limitations to differential reinforcement of other behavior (DRO) (which is probably the most widely used treatment procedure for behavior problems), we examined an alternative procedure--noncontingent reinforcement (NCR). Three females with developmental disabilities, all of whom engaged in severe self-injurious behavior, participated. During a pretreatment functional analysis, each subject's self-injury was shown to be differentially sensitive to social attention as a maintaining consequence. Next, each subject was exposed to a DRO treatment and an NCR treatment. During DRO, attention was delivered contingent on the absence of self-injury for prespecified intervals. During NCR, attention was delivered on a fixed-time schedule that was not influenced by the subject's behavior. Results showed that both procedures were highly effective in reducing self-injury, probably because the functional reinforcer for self-injury was used during treatment. Furthermore, there was evidence that NCR attenuated several of the limitations of DRO. These results are particularly interesting in light of the long experimental history of NCR as a control rather than as a therapeutic procedure.
由于对其他行为的差别强化(DRO)存在潜在的严重局限性(这可能是针对行为问题最广泛使用的治疗程序),我们研究了一种替代程序——非连续强化(NCR)。三名患有发育障碍的女性参与了研究,她们都存在严重的自伤行为。在预处理功能分析期间,每个受试者的自伤行为被证明对作为维持后果的社会关注有不同程度的敏感性。接下来,每个受试者都接受了DRO治疗和NCR治疗。在DRO期间,只有在预先设定的时间段内没有自伤行为时才给予关注。在NCR期间,按照固定时间安排给予关注,不受受试者行为的影响。结果表明,两种程序在减少自伤行为方面都非常有效,这可能是因为在治疗过程中使用了自伤行为的功能性强化物。此外,有证据表明NCR减轻了DRO的一些局限性。鉴于NCR作为一种对照而非治疗程序有着悠久的实验历史,这些结果尤其有趣。