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相关概念视频

Attention-Deficit/Hyperactivity Disorder01:30

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Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
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Information Processing Approach01:30

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The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
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相关实验视频

Updated: Jun 12, 2025

Event Related Potentials ERPs and other EEG Based Methods for Extracting Biomarkers of Brain Dysfunction: Examples from Pediatric Attention Deficit/Hyperactivity Disorder ADHD
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无监督机器学习用于识别基于认知功能和它们对大脑结构的影响的注意力缺陷/多动性障碍亚型.

Masatoshi Yamashita1,2, Qiulu Shou1,2, Yoshifumi Mizuno1,2,3

  • 1Research Center for Child Mental Development, University of Fukui, Fukui, Japan.

Psychological medicine
|September 26, 2024
PubMed
概括

注意缺陷/多动障碍 (ADHD) 有不同的亚型. 一个亚型,ADHD-C,显示特定区域的大脑体积较小,与语言缺陷有关,解释了ADHD研究中的不一致的发现.

关键词:
注意力缺陷/多动症障碍.大脑结构 大脑结构认知功能 认知功能异质性的异质性无监督的机器学习

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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
  • 认知科学 认知科学

背景情况:

  • 注意缺陷/多动症 (ADHD) 与额叶和基底腺异常有关.
  • 在ADHD神经成像研究中不一致的发现可能源于ADHD固有的多样性.
  • 识别不同的ADHD亚型对于理解其神经生物学基础至关重要.

研究的目的:

  • 根据认知功能识别ADHD亚型.
  • 调查与每个ADHD亚型相关的独特的大脑结构特征.

主要方法:

  • 在656名患有ADHD的儿童的数据上利用无监督机器学习 (ABCD研究).
  • 雇员 国家卫生研究院 工具箱 认知功能评估任务.
  • 在已识别的ADHD亚型和6601名非ADHD儿童之间比较了区域大脑体积.

主要成果:

  • 层次集群分析揭示了三种ADHD亚型:ADHD-A (高认知能力),ADHD-B (低认知控制,处理速度,记忆) 和ADHD-C (认知控制,记忆,语言严重受损).
  • 与对照人群相比,ADHD-C亚型的左下旋和右侧轨道前皮层体积显著减少.
  • 在ADHD-C亚型中,右侧轨道前皮层体积与语言表现正相关;ADHD-A和ADHD-B没有显著体积差异.

结论:

  • ADHD-C亚型呈现与与语言缺陷相关的侧轨道前皮层异常.
  • 特定亚型的大脑结构差异可能会解决以前ADHD神经成像研究中的不一致性.