视觉运动网络动力学变化与帕金森病中步行结有关
Dongning Su1,2, Lanxin Ji2,3, Yusha Cui1,2
1Center for Movement Disorders, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Movement disorders : official journal of the Movement Disorder Society
|February 25, 2025
概括
帕金森病 (PD) 的动态大脑连接性变化与步态结 (FOG) 有关. 患有FOG的患者表现出视觉运动网络动态的改变,这表明与症状严重程度相关的刚性大脑状态.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 医疗成像医学成像
背景情况:
- 步态结 (FOG) 是帕金森病 (PD) 中普遍存在的运动障碍.
- 之前的研究假设FOG中的静态功能连接 (FC),但FC是动态的.
- 本研究使用高时间分辨率的fMRI研究了PD与FOG中的动态功能连接 (DFC).
研究的目的:
- 描述帕金森病 (PD) 患者的动态功能连接 (DFC) 模式,这些患者经历了步态结 (FOG).
- 探索DFC变化与FOG严重程度和相关认知缺陷之间的关系.
主要方法:
- 从87名PD患者 (29名FOG患者,58名FOG患者) 和32名健康对照获得的休息状态fMRI数据.
- 使用空间独立组件分析和滑动窗口方法来估计DFC.
- 分析的重点是识别不同的FC状态和它们之间的过渡.
主要成果:
- 确定了四种不同的FC"状态",包括视觉和感觉运动网络之间具有正和负连接的状态.
- 与非FOG PD患者相比,FOG PD患者在积极连接的视觉运动状态 (状态II) 中的时间较少,在消极连接的状态 (状态III) 中的时间较长.
- 状态III的时间增加与FOG严重程度和视觉空间/执行功能障碍相关,而FOG患者的状态转换较少,大脑状态变化减少,表明大脑"刚性".
结论:
- 视觉运动网络连接的动态变化与PD中FOG的存在和严重程度有关.
- 这些发现为帕金森病中FOG背后的病理生理机制提供了新的见解.
- DFC分析为FOG中的大脑网络变化提供了新的视角.
更多相关视频
07:26Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking
Published on: September 26, 2019
7.8K
04:08Applying the RatWalker System for Gait Analysis in a Genetic Rat Model of Parkinson's Disease
Published on: January 18, 2021
2.8K
相关概念视频
Parkinson's Disease: Overview
498
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
498
Neural Regulation
39.2K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.2K
Parkinson's Disease: Treatment
237
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
237
