Duker P C, van Lent C
University of Nijmegen, The Netherlands.
J Appl Behav Anal. 1991 Summer;24(2):379-86. doi: 10.1901/jaba.1991.24-379.
Handicapped individuals who have been taught spontaneous gesture requests often use only a small part of their vocabulary. Procedures to recover the unused part of this vocabulary have not been documented. This study was designed to identify procedures for increasing the proportion of gestures used spontaneously. Six mentally handicapped individuals served as subjects. After a baseline phase during which spontaneous gesture requests were reinforced, consequences were withheld for high-rate gesture requests. This led to an increase in different gesture requests. Although gesture requests did not return to baseline levels during a reversal condition, functional control was demonstrated by way of a multiple baseline across subjects. The absence of a reversal effect suggests enduring effects of the procedure.
那些被教导过自发做出手势请求的残障人士往往只使用了他们词汇量的一小部分。恢复这部分未使用词汇的程序尚未有文献记载。本研究旨在确定增加自发使用手势比例的程序。六名智力残障人士作为研究对象。在强化自发手势请求的基线阶段之后，对高频手势请求不再给予强化。这导致了不同手势请求的增加。尽管在反转条件下手势请求没有回到基线水平，但通过对不同研究对象的多重基线设计证明了功能控制。反转效应的缺失表明该程序具有持久的效果。
