Lanovaz Marc J, Fletcher Sarah E, Rapp John T
Centre de Réadaptation Lisette-Dupras.
Behav Modif. 2009 Sep;33(5):682-704. doi: 10.1177/0145445509344972.
We used a three-component multiple-schedule with a brief reversal design to evaluate the effects of structurally unmatched and matched stimuli on immediate and subsequent vocal stereotypy that was displayed by three children with autism spectrum disorders. For 2 of the 3 participants, access to matched stimuli, unmatched stimuli, and music decreased immediate levels of vocal stereotypy; however, with the exception of matched stimuli for one participant, none of the stimuli produced a clear abolishing operation for subsequent vocal stereotypy. That is, vocal stereotypy typically increased to baseline levels shortly after alternative stimulation was removed. Detection of motivating operations for each participant's vocal stereotypy was aided by the analysis of component distributions. The results are discussed in terms of immediate and subsequent effects of preferred stimuli on automatically reinforced problem behavior.
我们采用了一种具有简短反转设计的三成分多重时间表，以评估结构不匹配和匹配的刺激对三名自闭症谱系障碍儿童所表现出的即时和后续言语刻板行为的影响。对于三名参与者中的两名，接触匹配刺激、不匹配刺激和音乐会降低即时言语刻板行为水平；然而，除了一名参与者的匹配刺激外，没有一种刺激对后续言语刻板行为产生明显的消除作用。也就是说，在去除替代刺激后不久，言语刻板行为通常会增加到基线水平。通过对成分分布的分析，有助于检测每个参与者言语刻板行为的动机操作。我们根据偏好刺激对自动强化的问题行为的即时和后续影响来讨论结果。
