自闭症儿童左半球视觉连接的异常模式:与受损实践的关联
Jonah McLaughlin1, Deana Crocetti1, Stewart H Mostofsky1,2,3
1Center for Neurodevelopmental and Imaging Research, Kennedy Krieger Institute, Baltimore, Maryland, United States.
概括
患有自闭症谱系障碍 (ASD) 的儿童表现出大脑连接的改变. 这会影响视觉运动整合,影响通过模仿学习技能,并可能导致自闭症的运动困难.
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:
- 自闭症谱系障碍 (ASD) 与视觉运动整合 (VMI) 差异有关,可能会通过观察阻碍通过观察获得运动和社会技能.
- 患有自闭症的儿童表现出运动任务缺陷和高阶视觉 (HOV) 和感官运动皮层之间的非典型连接.
- 对先天性失明的研究显示了改变的HOV连接模式,包括减少对感觉运动区域的连接和增加前额叶皮层 (PFC) 的连接.
研究的目的:
- 用fMRI研究自闭症谱系障碍 (ASD) 的儿童的高阶视觉 (HOV) 功能连接 (FC).
- 测试与典型发育 (TD) 儿童相比,ASD中HOV-SM1降低和HOV-PFC连接性增加的假设.
- 探索改变的HOV连接模式与ASD儿童实践困难之间的相关性.
主要方法:
- 使用功能磁共振成像 (fMRI) 来评估HOV功能连接 (FC).
- 参与者包括自闭症儿童和典型发育 (TD) 儿童.
- 统计分析检查了HOV连接的差异和与实践绩效的相关性.
主要成果:
- 患有自闭症的儿童表现出改变的HOV连接模式,其特点是与感觉运动皮层 (SM1) 的连接性减少.
- 在患有自闭症的儿童中,观察到HOV与前额叶皮层 (PFC) 的连接性增加.
- 在ASD中发现的HOV连接模式与实践障碍相关,表明在执行熟练操作方面存在困难.
结论:
- 患有自闭症的儿童表现出HOV功能连接的独特模式,与TD儿童不同.
- 改变的HOV连接,特别是减少的SM1和增加的PFC连接,可能是ASD视觉学习技能获得困难的基础.
- 这些发现表明,在自闭症谱系障碍中观察到的运动和模仿挑战的神经基础.
相关概念视频
01:19Autism Spectrum Disorder
885
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
885
01:28Lateralization
928
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
928
01:12Visual Agnosia
872
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
872
01:26Modeling in Therapy
356
Modeling, a key technique in therapy, uses observational learning to help clients acquire and practice new skills by watching therapists demonstrate desired behaviors. This approach, rooted in Albert Bandura's concept of vicarious learning, plays a significant role in therapeutic interventions for various psychological conditions, including social anxiety, ADHD, and depression.
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
356