青少年肌性的神经心理学网络
Camille Garcia-Ramos1, Aaron F Struck2, Veena A Nair3
1Department of Neurology, University of Wisconsin-Madison, Madison, WI 53726, USA.
概括
青少年肌性 (JME) 改变了认知网络,显示专业化减少和非典型组织. 没有受到影响的JME患者的兄弟姐妹表现出一些类似的网络变化,这表明对认知网络结构的遗传影响.
科学领域:
- 神经心理学 神经心理学
- 的研究研究.
- 认知神经科学 认知神经科学
背景情况:
- 青少年肌性 (JME) 是一种具有已知的认知影响的遗传通用性.
- 在JME中,网络神经心理学或认知能力的整合和组织尚未得到充分理解.
- 研究JME及其未受影响的兄弟姐妹的认知网络变化可以阐明遗传和表型关系.
研究的目的:
- 检查JME患者认知网络的状态.
- 为了确定JME患者的未受影响的兄弟姐妹是否有类似的认知网络变化.
- 了解JME对认知能力的相互关系和网络组织的影响.
主要方法:
- 图形理论分析应用于78名JME患者,19名未受影响的兄弟姐妹和43名对照者的神经心理测试数据.
- 计算了全球网络指标 (效率,集群系数,模块化) 和节点属性 (中间中心性).
- 分析了认知网络模块及其地形结构.
主要成果:
- 结合性脑脊髓炎患者表现出认知测试的相互相关性增加 (阳性多元体) 和网络隔离减少 (较低的聚类系数).
- 与对照组相比,JME患者的模块化程度较低,表明认知模块的划分较弱,网络结构差异较小.
- 对照组和兄弟姐妹有三个不同的认知模块 (速度/执行,感知,语言),而JME患者有两个,包括一个不分化的"g-like"模块.
结论:
- JME与较少专业化的认知子系统和不典型的认知网络配置有关,导致认知状态较差.
- 不受影响的兄弟姐妹表现出一些共享的非典型认知网络特征,这表明这些网络变化的部分透.
- 这些发现强调了网络神经心理学在理解JME的认知后果和遗传基础方面的重要性.
相关概念视频
Seizures: Classification
299
Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
299
Antiepileptic Drugs: Glutamate Antagonists
271
Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
271
Antiepileptic Drugs: GABAergic Pathway Potentiators
310
γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
310
Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein
216
Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
216
Disorders of the Nervous Tissue
1.0K
Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises...
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises...
1.0K
Neuromuscular Junction And Blockade
2.8K
The site of chemical communication between a motor neuron and a muscle fiber is called the neuromuscular junction (NMJ). The end of the motor neuron at the NMJ divides into a cluster of synaptic end bulbs. The cytoplasm of these bulbs consists of synaptic vesicles enclosing acetylcholine molecules, the principal neurotransmitter released at the NMJ. The region opposite the synaptic bulb that ends in the muscle fiber is called the motor end plate, which has acetylcholine receptors. Within the...
2.8K


