Wåhlstedt Cecilia
Department of Psychology, Uppsala University, Uppsala, Sweden.
Child Neuropsychol. 2009 May;15(3):262-79. doi: 10.1080/09297040802524198. Epub 2008 Dec 16.
The aim of the present study was to investigate possible independent and combined effects of inhibitory control, delay aversion, and RT variability in relation to symptoms of hyperactivity/impulsivity and inattention. A community-based sample of school children (N = 111) completed neuropsychological tasks designed to measure inhibitory control, delay aversion, and RT variability. Behavioral symptoms were measured through parental and teacher ratings of the DSM-IV criteria for ADHD and ODD. The results showed that inhibitory control and RT variability were primarily related to symptoms of inattention rather than hyperactivity/impulsivity. Further, out of the three neuropsychological factors studied, only inhibitory control contributed uniquely to the variance of ADHD symptoms. However, significant interaction effects of delay aversion and RT variability on symptoms of both hyperactivity/impulsivity and inattention were found. This study shows the importance of searching for possible combined effects of neuropsychological factors to learn more about the different pathways that lead to ADHD symptoms in children.
本研究的目的是调查抑制控制、延迟厌恶和反应时变异性在与多动/冲动症状及注意力不集中方面可能存在的独立及联合效应。一个以社区为基础的学龄儿童样本（N = 111）完成了旨在测量抑制控制、延迟厌恶和反应时变异性的神经心理学任务。行为症状通过父母和教师对多动症和对立违抗性障碍的DSM-IV标准的评分来衡量。结果表明，抑制控制和反应时变异性主要与注意力不集中症状相关，而非多动/冲动症状。此外，在所研究的三个神经心理学因素中，只有抑制控制对多动症症状的方差有独特贡献。然而，发现延迟厌恶和反应时变异性对多动/冲动症状及注意力不集中症状均有显著的交互作用。本研究表明，探索神经心理学因素可能的联合效应对于进一步了解导致儿童多动症症状的不同途径具有重要意义。
