Behavioral correlates of reaction time variability in children with and without ADHD.
Behavioral correlates of reaction time variability in children with and without ADHD.
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DOI：
10.1037/a0032071
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发表时间：
2013-03
期刊：
影响因子：
2.4
通讯作者：
Epstein, Jeffery N.
中科院分区：
文献类型：
--
作者：
Antonini, Tanya N.;Narad, Megan E.;Langberg, Joshua M.;Epstein, Jeffery N.
反应时变异性常常被声称可表明行为注意力。本研究旨在检验注意缺陷多动障碍（ADHD）儿童的反应时变异性是否与观察到的注意力行为指标相关。
147名患有和未患有ADHD的参与者完成了五项计算机化神经心理学任务和一项模拟数学任务。利用线性混合模型来检验模拟任务期间行为注意力不集中的观察结果与神经心理学任务的反应时变异性测量值之间的关系。
在反应时变异性和模拟数学任务中任务专注行为的平均持续时间之间观察到显著关联。二次分析表明，数学任务期间的任务专注行为也与神经心理学任务的准确性相关。
反应时变异性，尤其是以长反应时为特征的那部分反应时变异性，似乎衡量了一种认知现象，这种现象与患有和未患有ADHD的儿童成功的任务专注学业行为有关。反应时变异性与任务专注行为之间的关系存在于多个神经心理学任务中，并且似乎不受年龄、性别或焦虑或抑郁的存在的影响。
RT variability is often purported to indicate behavioral attention. This study seeks to examine whether RT variability in children with ADHD is associated with observed behavioral indicators of attention. One-hundred forty-seven participants with and without ADHD completed five computerized neuropsychological tasks and an analogue math task. Linear mixed models were utilized to examine the relationship between observations of behavioral inattention during the analogue task and measures of RT variability from the neuropsychological tasks. Significant associations were observed between RT variability and mean duration of on-task behavior on the analogue math task. Secondary analyses indicated that on-task behavior during the math task was also related to accuracy on the neuropsychological tasks. RT variability, especially the portion of RT variability characterized by long RTs, appears to measure a cognitive phenomenon that relates to successful on-task academic behavior across children with and without ADHD. The relationship between RT variability and on-task behavior is present across multiple neuropsychological tasks and does not appear to be moderated by age, sex, or the presence of anxiety or depression.
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影响因子：
1.8
作者：
Leth-Steensen, C;Elbaz, ZK;Douglas, VI
通讯作者：
Douglas, VI
DOI：
10.1097/00004583-200001000-00014
发表时间：
2000-01-01
影响因子：
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作者：
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作者：
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影响因子：
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作者：
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影响因子：
3.6
作者：
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通讯作者：
Nigg, JT