走向ADHD的内分类型:探索在没有药物的ADHD儿童中持续时间不匹配的消极性
Shadi Moradkhani1, Atoosa Sanglakh Ghoochan Atigh2, Mehdi Alizade Zarei3
1Department of Neuroscience, Faculty of Psychology and Educational Science, University of Tabriz, Tabriz, Iran.
Applied neuropsychology. Child
|July 31, 2024
概括
患有注意力缺陷多动症 (ADHD) 的儿童在听觉处理任务中显示出较低的不匹配负面性 (MMN) 幅度和较长的延迟. 这些发现表明,感官处理差异可能是ADHD的基础,与研究领域标准 (RDoC) 框架保持一致.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 临床心理学 临床心理学
背景情况:
- 注意缺陷多动性障碍 (ADHD) 是一种普遍存在的儿童障碍,影响信息处理.
- 听觉时间信息处理效率低下是ADHD的一个潜在缺陷.
- 研究领域标准 (RDoC) 为研究精神障碍提供了一个基于神经科学的框架.
研究的目的:
- 研究ADHD儿童的不匹配负面性 (MMN) 幅度和延迟的变化.
- 在一个奇怪的任务中检查MMN对持续时间和刺激间隔 (ISI) 变化的反应.
- 在RDoC框架内探索MMN作为ADHD的电生理学标记物的潜力.
主要方法:
- 采用了一个奇特的范式,使用持续时间和ISI偏差来引起MMN.
- 在患有多动症 (ADHD) 的儿童 (n=25) 和典型发育 (TD) 的儿童 (n=25) 中比较了MMN反应.
- 利用电生理学记录 (在Fz和Cz) 并根据年龄,性别和智商匹配组.
主要成果:
- 患有ADHD的儿童在Fz和Cz电极上的MMN振幅显著减少,因为持续时间和ISI偏差.
- 与TD组相比,ADHD组在Fz和Cz上显示了较长的MMN延迟时间.
- 研究结果表明,ADHD儿童的听觉感官处理不典型.
结论:
- 在ADHD中,MMN振幅降低和延长的延迟表明有听觉处理和时间缺陷.
- 结果支持内部时钟模型,可能涉及多巴胺调节.
- 在RDoC框架内,听觉定时的MMN异常可能作为ADHD的内类型.
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