Department of Educational Studies, Macquarie University, Australia.
Department of Psychology, Macquarie University, Australia.
Behav Res Ther. 2017 Aug;95:42-49. doi: 10.1016/j.brat.2017.05.006. Epub 2017 May 11.
Two behavioural strategies for reducing learned fear are extinction and counter-conditioning, and in this study we compared the relative effectiveness of the two procedures at diminishing fear in children. Seventy-three children aged 7-12 years old (M = 9.30, SD = 1.62) were exposed to pictures of two novel animals on a computer screen during the fear acquisition phase. One of these animals was paired with a picture of a scared human face (CS+) while the other was not (CS-). The children were then randomly assigned to one of three conditions: counter-conditioning (animal paired with a happy face), extinction (animal without scared face), or control (no fear reduction procedure). Changes in fear beliefs and behavioural avoidance of the animal were measured. Counter-conditioning was more effective at reducing fear to the CS + than extinction. The findings are discussed in terms of implications for behavioural treatments of childhood anxiety disorders.
两种减少习得性恐惧的行为策略是消退和条件反射,本研究比较了这两种程序在减少儿童恐惧方面的相对有效性。73 名 7-12 岁的儿童(M=9.30,SD=1.62)在恐惧习得阶段在电脑屏幕上观看两张新动物的图片。其中一种动物与一张害怕的人脸(CS+)配对,而另一种则不配对(CS-)。然后,孩子们被随机分配到以下三种条件之一:条件反射(与快乐脸配对的动物)、消退(没有恐惧脸的动物)或对照组(无恐惧减少程序)。测量了对动物的恐惧信念和行为回避的变化。条件反射比消退更有效地减少了对 CS+的恐惧。研究结果在行为治疗儿童焦虑症的意义方面进行了讨论。