精神分裂症中面部情绪处理的改变大脑动态:一个结合EEG/fMRI研究
Philippa Hüpen1,2, Barbara Schulte Holthausen1,3, Christina Regenbogen1
1Department of Psychiatry, Psychotherapy and Psychosomatics, Faculty of Medicine, RWTH Aachen, Aachen, Germany.
Schizophrenia (Heidelberg, Germany)
|January 17, 2025
概括
精神分裂症患者在看到恐惧的面孔时显示出大脑连接的改变,影响了情绪处理. 这种神经差异与理解和表达情绪的困难有关.
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.
- 认知科学 认知科学
背景情况:
- 面部处理障碍是精神分裂症的一个已知的特征,影响社会互动.
- 精神分裂症中面部处理缺陷的特定神经机制和时间动态尚未完全理解.
研究的目的:
- 在精神分裂症中研究处理与任务无关的情感面孔的神经时间动态.
- 利用结合EEG/fMRI探索精神分裂症患者大脑中有效的连接性改变.
主要方法:
- 结合脑电图 (EEG) 和功能磁共振成像 (fMRI) 在14名精神分裂症患者和14名健康对照中使用.
- 基于fMRI的兴趣区域分析与EEG动态因果建模 (DCM) 结合,以评估有效的连接性.
主要成果:
- 精神分裂症患者表现出主要视觉皮层 (V1) 和左尾状回环 (lOFG) 之间的有效连接性发生变化.
- 具体来说,对于精神分裂症患者的可怕面部刺激,观察到从LOFG到V1的后向连接性得到了增强.
- 这种增强的连接性与多伦多AlexithymiaScale-20 (TAS-20) 的更高得分相关,表明更大的情绪处理困难.
结论:
- 在精神分裂症中,增强的向后LOFG-V1连接可能反映了对恐惧刺激的注意力增加.
- 这一神经发现表明,潜在的机制有助于精神分裂症的社会和认知障碍.
- 与alexithymia得分的相关性突出了这些神经改变对情绪体验的现实影响.
相关概念视频
Negative and Cognitive Symptoms of Schizophrenia
41
Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
41
Biological Causes of Schizophrenia
38
Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
38
Facial Feedback Hypothesis
123
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
123
Positive Symptoms of Schizophrenia: Hallucinations and Delusions
56
Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
56
Schizophrenia
63
Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
63
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
413
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
413


