Probing the limits of delay intolerance: Preliminary young adult data from the Delay Frustration Task (DeFT)
Probing the limits of delay intolerance: Preliminary young adult data from the Delay Frustration Task (DeFT)
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DOI：
10.1016/j.jneumeth.2005.06.031
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发表时间：
2006-02-15
影响因子：
3
通讯作者：
Sonuga-Barke, EJS
中科院分区：
文献类型：
--
作者：
Bitsakou, P;Antrop, I;Sonuga-Barke, EJS
延迟不耐受/厌恶是ADHD的许多候选神经心理内表型之一。试点数据表明，由于潜在的天花板效应，简单的选择措施的延迟容忍用于儿童可能不适合青少年和成人。延迟挫折任务（DeFT）是一种新的延迟不容忍测量方法，旨在以类似的形式用于青少年和成人以及儿童。在它的延迟挫折是索引的数量和持续时间的响应键在一系列不可预测的和无信号的延迟期间，中断完成一个简单的基于计算机的测试。本研究的目的是提供初步数据的适用性的任务在一个样本的年轻人。DeFT管理49名男性和女性本科生从正常人群中选择的基础。平均年龄23.14岁（S.D. = 1.54）。在响应窗口期间的时间间隔内记录延迟挫折的三个测量值;在响应后延迟期间，计算每个第二间隔箱的响应数量、其持续时间及其组合产品（按下总时间按钮）。阿尔斯和HADS分别被用作ADHD和焦虑行为的筛查问卷。结果表明，在后反应延迟条件下，ADHD症状评分高的年轻人比ADHD评分低的年轻人更多地按下按钮。虽然两组在时间间隔内的反应都有所增加，但这在高ADHD症状组中更为明显。当焦虑得到控制时，这些影响变得更加明显。患有高ADHD症状的年轻人似乎对简单数学测试中的计划外和无信号延迟更敏感。DeFT可以提供一个有用的指标，延迟容忍的年轻成人多动症。未来的研究需要检查不同年龄组以及临床和非临床人群的DeFT表现。(c)2005 Elsevier B. V.保留所有权利。
Delay intolerance/aversion is one amongst a number of candidate neuropsychological endophenotypes for ADHD. Pilot data suggest that, because of potential ceiling effects, simple choice measures of delay tolerance used for children are probably not appropriate for adolescents and adults. The Delay Frustration Task (DeFT) is a new measure of delay intolerance, designed to be used in a similar form with adolescents and adults as well as children. In it delay frustration is indexed as the number and duration of responses made on a response key during a series of unpredictable and unsignalled delay periods, which interrupt the completion of a simple computer-based tests. The aim of this study was to provide preliminary data on the applicability of the task in a sample of young adults. The DeFT was administered to 49 male and female undergraduate students selected from a normal population-base. Their mean age was 23.14 (S.D. = 1.54). Three measures of delay frustration were recorded across time intervals during the response window; the number of responses, their duration and their combined product (total time button was pressed) was calculated for each second interval bin during the post-response delay period. The AARS and HADS were used as screening questionnaires for ADHD and anxiety behaviour, respectively. The results indicated that young adults with high-ADHD symptoms scores pressed the button more than those with low ADHD scores during the post-response delay condition. While both groups increased responding across time within intervals this was significantly more marked in the high-ADHD symptom group. These effects became more pronounced when anxiety was controlled. Young adults with high-ADHD symptoms appear to be more sensitive to the imposition of unscheduled and unsignalled delay during a simple maths test. DeFT may provide a useful index of delay tolerance in young adults with ADHD. Future research needs to examine DeFT performance in different age groups and in clinical and non-clinical populations. (c) 2005 Elsevier B.V. All rights reserved.