Munroe-meyer Institute, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA.
J Appl Behav Anal. 2010 Winter;43(4):673-83. doi: 10.1901/jaba.2010.43-673.
Little is known about the characteristics of meals that serve as motivating operations (MOs) for escape behavior. In the current investigation, we showed that the distance at which a therapist held a spoon from a child's lips served as an MO for escape behavior. Based on these results, we implemented spoon distance fading, compared fading with and without escape extinction (EE), and compared fading plus EE to EE alone. Initially, inappropriate mealtime behavior decreased during fading, but this effect was not maintained as fading progressed. Inappropriate mealtime behavior was lower initially when we combined fading and EE relative to EE alone, but acceptance increased more rapidly with EE than with fading plus EE. These results suggest that a number of mealtime characteristics might function as MOs for escape behavior and that analyses of MOs may be useful for developing treatments for food refusal.
对于作为逃避行为的激发操作（MOs）的餐食特点，人们知之甚少。在当前的研究中，我们发现治疗师将勺子放在孩子嘴唇的距离可以作为逃避行为的 MO。基于这些结果，我们实施了勺子距离消退，比较了消退与有无逃避消退（EE），以及消退加 EE 与 EE 单独比较。最初，在消退过程中，不适当的用餐时间行为减少，但随着消退的进行，这种效果没有得到维持。当我们将消退和 EE 结合使用时，与 EE 单独使用相比，不适当的用餐时间行为初始时较低，但 EE 比消退加 EE 更快地增加了接受度。这些结果表明，许多用餐特点可能是逃避行为的 MO，对 MO 的分析可能有助于开发治疗食物拒绝的方法。
