Silbaugh Bryant C, Falcomata Terry S
a Department of Special Education , University of Texas , Austin , TX , USA.
Dev Neurorehabil. 2017 Jul;20(5):309-312. doi: 10.3109/17518423.2016.1146364. Epub 2016 Mar 28.
To evaluate the effects of a lag schedule of positive reinforcement on variability in food consumed by a boy with autism and food selectivity.
Using single-subject experimental design methodology, an ABAB design was employed. During lag 0 (condition A), high-preferred toys were delivered contingent on consumption of any food. During lag 1 (condition B), high-preferred toys were delivered contingent on consumption of different foods within session.
Higher levels of variability in within-session consumption were observed during lag 1 conditions.
The lag 1 schedule of reinforcement increased variability in food consumed. This finding adds to the literature by demonstrating a novel experimental arrangement that may be used in applied studies to evaluate the clinical utility of differentially reinforcing variability in the treatment of food selectivity associated with autism.
评估正强化的延迟程序对一名患有自闭症且有食物选择性的男孩所摄入食物变异性的影响。
采用单受试者实验设计方法，运用ABAB设计。在延迟0（A条件）期间，只要食用任何食物就会给予高度偏好的玩具。在延迟1（B条件）期间，在同一时段内食用不同食物时给予高度偏好的玩具。
在延迟1条件下观察到同一时段内食物摄入量的变异性更高。
延迟1的强化程序增加了所摄入食物的变异性。这一发现通过展示一种新的实验安排为文献增添了内容，该实验安排可用于应用研究，以评估差异强化变异性在治疗与自闭症相关的食物选择性方面的临床效用。
