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相关概念视频

Autism Spectrum Disorder01:19

Autism Spectrum Disorder

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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.
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Depressive Disorders: MDD and Dysthymia01:27

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Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
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Depressive Disorders: Etiology01:27

Depressive Disorders: Etiology

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Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
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Depression: Overview01:18

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Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
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Social Anxiety Disorder01:28

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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.
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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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患有ASD和没有ASD的抑郁症患者之间的连接差异:一个病例对照研究.

Tomoki Kaneko1, Toshinori Nakamura2, Akiko Ryokawa2

  • 1Department of Radiology, Shinshu University School of Medicine, Matsumoto, Nagano, Japan.

PloS one
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PubMed
概括

与单独患有抑郁症和自闭症谱系障碍 (ASD) 的成年人相比,在突出网络中显示出不同的大脑连接模式,特别是涉及到超边缘环和海马体,与单独患有抑郁症的人相比.

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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:

  • 在成年人中,将自闭症谱系障碍 (ASD) 的抑郁症与没有ASD的抑郁症区分开来,带来了诊断挑战.
  • 了解神经生物学差异对于准确的诊断和治疗至关重要.

研究的目的:

  • 调查和澄清与ASD (抑郁症-wASD) 患有抑郁症的成年患者和没有ASD (抑郁症) 患有抑郁症的成年患者之间的大脑连接的差异.

主要方法:

  • 使用休息状态功能磁共振成像 (rs-fMRI) 对22名使用DSM-5标准诊断的成年患者.
  • 通过使用HAM-D,YMRS,PARS-TR和AQ-J等尺度评估患者.
  • 使用CONN工具箱分析大脑连接,并对结构图像进行基于voxel的形态测量.

主要成果:

  • 在抑郁症严重程度 (HAM-D),躁狂症状 (YMRS),ASD特征 (AQ-J) 或抑郁症-wASD和抑郁症组之间的智商方面没有发现显著差异.
  • rs-fMRI揭示了抑郁症-wASD组的突出网络 (SN) 中明显的连接模式,包括与右上边缘环 (SMG) 的积极连接和与海马体和副海马体的负面连接.
  • 两组之间没有观察到显著的结构性大脑差异.

结论:

  • 确定了ASD抑郁症患者和单独抑郁症患者之间突出网络与边缘上环和海马区域的参与的特定差异.
  • 这些发现突出了独特的神经支,可能有助于区分这些疾病.