相关实验视频
Updated: Jan 28, 2026

04:05
Real-Time fMRI Brain Mapping in Animals
Published on: September 24, 2020
4.1K
在药物先验的泛性焦虑障碍中异常的静止状态功能连接:全脑探索性fMRI研究
Yujing Jin1, Tong Zhang1, Wujianwen Zhai1
1Traditional Chinese Medicine Research and Development Center, Guang'anmen Hospital, Beijing, China.
Frontiers in psychiatry
|January 26, 2026
概括
未经治疗的泛性焦虑障碍 (GAD) 显示了大脑连接的改变,特别是在后侧环状皮质和上边脊椎之间. 这些变化与焦虑的严重程度相关,这表明GAD中整体感受处理的作用.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 医疗成像医学成像
背景情况:
- 一般性焦虑障碍 (GAD) 标志着过度担忧和身体症状.
- 以前的神经成像研究经常包括治疗患者,限制了对未经治疗的GAD的理解.
- 这项研究侧重于在未服用过药物的GAD患者中休息状态功能连接 (rsFC).
研究的目的:
- 为了调查药物先验的通用焦虑障碍 (GAD) 患者的静止状态功能连接 (rsFC) 异常.
- 为了确定在未经治疗的GAD中受影响的特定大脑区域和连接.
- 探索rsFC与焦虑严重程度之间的关系.
主要方法:
- 横截面研究比较未服用药物的GAD患者 (n=85) 和健康对照 (HCs,n=82).
- 使用西门子3.0T扫描仪获取的静止状态功能磁共振成像 (rs-fMRI) 数据.
- 使用CONN工具箱对rsFC进行全脑,数据驱动的分析,重点关注138个感兴趣区域之间的连接.
主要成果:
- 在GAD患者和HC患者之间发现了rsFC集群的显著差异.
- 在后带皮层 (PCC) 和右上边脊椎 (SMG) 之间观察到异常连接,包括超和低连接.
- 四个PCC-SMG连接显示与汉密尔顿焦虑评分表 (HAMA) 分数有正相关性.
结论:
- 没有服用过药物的GAD患者表现出明显的rsFC异常,特别是涉及PCC-SMG网络.
- 增强的PCC-SMG rsFC与焦虑严重程度相关,这表明GAD中感官过敏症的潜在作用.
- 这些发现支持SMG驱动的警模式,使焦虑延续,并突出了干预的潜在神经点.
相关概念视频
Generalized Anxiety Disorder
677
Generalized Anxiety Disorder (GAD) is a chronic condition characterized by excessive and uncontrollable worry that persists for at least six months, significantly interfering with daily functioning. Unlike situational anxiety, which arises in response to specific stressors, GAD often occurs without a clear cause. Individuals may experience disproportionate worry about work, health, or relationships. For instance, a person might continuously fear poor health despite normal medical evaluations or...
677
Social Anxiety Disorder
482
Social anxiety disorder, also known as social phobia, is characterized by an intense fear of social situations where one might face humiliation, rejection, embarrassment, or negative evaluation. This disorder leads individuals to avoid activities like casual conversations, public speaking, or seemingly simple tasks such as eating, signing documents, or swimming, in public settings. Its impact extends beyond discomfort, often significantly interfering with daily functioning and quality of life.
482
Functions of Connective Tissues
15.2K
Connective tissues perform a broad range of functions in the body. Their primary function is to connect and link different tissues in the body and act as packaging material between tissues. The areolar tissue, a connective tissue prototype, commonly cements various tissue types in diverse body organs. In contrast, adipose tissue cushions internal organs while insulating the body from heat loss.
Hard connective tissues, such as bones and cartilage, provide structure and support to the body.
Hard connective tissues, such as bones and cartilage, provide structure and support to the body.
15.2K
Generalized Hooke's Law
2.7K
The generalized Hooke's Law is a broadened version of Hooke's Law, which extends to all types of stress and in every direction. Consider an isotropic material shaped into a cube subjected to multiaxial loading. In this scenario, normal stresses are exerted along the three coordinate axes. As a result of these stresses, the cubic shape deforms into a rectangular parallelepiped. Despite this deformation, the new shape maintains equal sides, and there is a normal strain in the direction of the...
2.7K
The Resting Membrane Potential
142.1K
Overview
142.1K
Anxiety: Overview
1.0K
Anxiety is a common mental disorder featuring excessive worry, fear, and apprehension, significantly affecting daily life. People with anxiety disorders experience persistent and intense anxiety, interrupting their everyday functioning.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
1.0K

