在患有ADHD的儿童中,工作记忆负荷和抑制性能
Ibrahim Orhan1,2, Ishin Paralik2
1University of Gloucestershire, Cheltenham, UK.
Journal of attention disorders
|December 1, 2025
概括
患有注意力缺陷/多动障碍 (ADHD) 的儿童在工作记忆需求增加时表现出受损的抑制. 这表明ADHD儿童的资源分配困难,影响他们控制冲动和有效规划行为的能力.
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
- 认知心理学 认知心理学
背景情况:
- 抑制是一种关键的执行功能,对调节行为至关重要.
- 患有注意力缺陷/多动障碍 (ADHD) 的儿童可能表现出抑制控制的缺陷,尽管研究结果仍有争议.
- 工作记忆和资源分配被假定会影响抑制性能.
研究的目的:
- 调查不同工作记忆维护需求对ADHD和无ADHD儿童抑制性能的影响.
- 探索资源分配在ADHD中观察到的执行功能缺陷中的作用.
主要方法:
- 80名儿童 (711岁) 参与,包括患有和没有ADHD的儿童.
- 一个Go/no-go任务被调整为四个不断增加的工作内存负载级别.
- 混合重复测量 ANOVA 用于数据分析.
主要成果:
- 在没有工作记忆负载的组之间,没有发现抑制的显著差异.
- 患有ADHD的儿童在工作记忆负载增加时表现出明显较差的抑制性能.
- 随着负载增加,ADHD组的表现下降,而对照组的表现有所改善.
结论:
- 工作记忆负载显著损害了ADHD儿童的抑制,但不是对照组.
- 这些发现表明,患有多动症的儿童在增加的认知需求下难以分配资源.
- 分配足够资源的困难可能是ADHD抑制控制缺陷的基础.
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