Wong S E, Terranova M D, Bowen L, Zarate R, Massel H K, Liberman R P
J Appl Behav Anal. 1987 Spring;20(1):77-81. doi: 10.1901/jaba.1987.20-77.
We evaluated the effects of minimally supervised, independent recreational activities on stereotypic vocal behavior in two chronic schizophrenic patients. In baseline sessions, subjects were observed during unstructured free time in the psychiatric ward. In treatment sessions, therapists presented preferred recreational materials (magazines, models, and art projects), verbally prompted on-task behavior every 20 min, and, in one condition, administered contingent tokens. Independent recreational activities reduced medium-rate self-talk in one subject and high-rate mumbling in a second subject by 60%-70%. Results were the same with or without contingent tokens. Apparent self-maintaining characteristics of these vocal responses are discussed.
我们评估了最低限度监督的独立娱乐活动对两名慢性精神分裂症患者刻板言语行为的影响。在基线阶段，在精神科病房的非结构化自由时间观察受试者。在治疗阶段，治疗师提供了受试者喜欢的娱乐材料（杂志、模型和艺术项目），每20分钟口头提示一次任务行为，并且在一种情况下给予应急代币。独立娱乐活动使一名受试者的中等频率自言自语和另一名受试者的高频率咕噜声减少了60%-70%。有无应急代币的结果相同。讨论了这些言语反应明显的自我维持特征。
