A diffusion modeling approach to understanding contextual cueing effects in children with ADHD.

A diffusion modeling approach to understanding contextual cueing effects in children with ADHD.
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DOI:
10.1111/jcpp.12250
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发表时间:
2014-12
期刊:
Journal of child psychology and psychiatry, and allied disciplines
影响因子:
--
通讯作者:
Huang-Pollock C
Huang-Pollock C
中科院分区:
其他
文献类型:
--
作者:
Weigard A;Huang-Pollock C

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强有力的理论模型表明,注意缺陷多动障碍(ADHD)儿童可能存在内隐学习缺陷。我们考察了ADHD儿童(n=72)和非ADHD对照组(n=36)儿童的内隐背景线索(CC)效应。使用Ratcliff的漂移扩散模型,我们发现在控制组中,CC效应是由于注意指导的改善和反应阈值的降低。ADHD儿童没有表现出CC效应;尽管他们能够使用内隐获得的信息来部署注意焦点,但他们更难调整他们的反应阈值。注意指导的改善和反应阈值的降低共同构成了CC效应的基础。结果与ADHD的神经认知模型一致,该模型假设皮质下功能障碍但空间注意力完整,并鼓励在处理反应时间数据时使用替代数据分析方法。
Strong theoretical models suggest implicit learning deficits may exist among children with Attention Deficit Hyperactivity Disorder (ADHD). We examine implicit contextual cueing (CC) effects among children with ADHD (n=72) and non-ADHD Controls (n=36). Using Ratcliff’s drift diffusion model, we found that among Controls, the CC effect is due to improvements in attentional guidance and to reductions in response threshold. Children with ADHD did not show a CC effect; although they were able to use implicitly acquired information to deploy attentional focus, they had more difficulty adjusting their response thresholds. Improvements in attentional guidance and reductions in response threshold together underlie the CC effect. Results are consistent with neurocognitive models of ADHD that posit sub-cortical dysfunction but intact spatial attention, and encourage the use of alternative data analytic methods when dealing with reaction time data.
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