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相关概念视频

Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

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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,...
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Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

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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...
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Schemas01:42

Schemas

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A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
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Storage01:23

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A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
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Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

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Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
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Schizophrenia01:17

Schizophrenia

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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...
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相关实验视频

Updated: Jun 7, 2025

Author Spotlight: Investigating the Effects of Mind-Body-Movement Practices on Brain Function
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认知地图和精神分裂症

Matthew M Nour1, Yunzhe Liu2, Mohamady El-Gaby3

  • 1Department of Psychiatry, University of Oxford, Oxford, OX3 7JX, UK; Max Planck University College London Centre for Computational Psychiatry and Ageing Research, London, WC1B 5EH, UK.

Trends in cognitive sciences
|November 20, 2024
PubMed
概括
此摘要是机器生成的。

精神分裂症的症状可能源于大脑形成结构化表征的能力受损,称为认知地图. 这种认知映射假设将神经电路问题和环境因素与这些认知异常联系起来.

关键词:
海马体重复播放在海马体内,海马体知识的一般化知识的一般化.神经吸引器的神经吸引器神经代表的神经表示.精神错乱是一种精神病.

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科学领域:

  • 神经科学是一个神经科学.
  • 精神病学是一种精神病学.
  • 认知科学 认知科学

背景情况:

  • 结构化的内部表示或认知图对于各种认知功能至关重要.
  • 了解这些表示如何在神经网络中形成,正在迅速发展.
  • 认知映射假说提出精神分裂症源于这些表征中的异常.

研究的目的:

  • 扩展认知映射假设,以解释各种精神分裂症症状.
  • 将神经生理学和环境因素与精神分裂症中的表达异常联系起来.

主要方法:

  • 对认知地图,神经网络和精神分裂症的现有研究进行审查和综合.
  • 基于神经生理学原理 (例如,激发抑制平衡) 和环境风险因素的理论框架开发.

主要成果:

  • 不同的精神分裂症症状,包括妄想和混乱的思维,可能源于受损的认知地图形成.
  • 代表性学习中的异常可能是由于神经生理学问题造成的,例如吸引力不稳定.
  • 早期的心理社会压力因素可能会对表现学习产生负面影响,导致精神分裂症.

结论:

  • 认知映射假设为理解精神分裂症提供了一个统一的框架.
  • 它整合了神经电路功能障碍,环境影响和临床症状.
  • 这种方法突出了治疗干预的潜在目标.