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Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

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Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
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Biological Causes of Schizophrenia01:29

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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
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Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

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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
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The term "psychosis" refers to a spectrum of mental disorders characterized by abnormal thoughts, perceptions, and behaviors. It can manifest as mood disorders, dementia, delirium with psychotic features, substance-induced psychosis with psychotic features, brief psychotic disorder, delusional disorder, schizoaffective disorder, and schizophrenia. Among all these disorders, schizophrenia is the most common psychotic disorder, affecting 1% of the worldwide population. Psychotic...
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Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for...
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Antipsychotic drugs are a crucial treatment method for acute and chronic psychoses, bipolar illness, and behavioral disorders. The selection of these drugs depends on several factors, including the state of the disease, clinical judgment, possible drug interactions, and the patient's sensitivity to adverse effects. In immediate scenarios, such as delirium and dementia, short-term treatment with low doses of high-potency typical or atypical agents can effectively manage symptom exacerbation.
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可解释的机器学习模型可以预测第一发精神分裂症患者的攻击性行为.

Hua Fan1, Zexi Yang2, Xinyi Yu2

  • 1Beijing An Ding Hospital, Beijing, PR China.

Journal of psychiatric research
|October 4, 2025
PubMed
概括

机器学习模型可以预测第一发精神分裂症患者的攻击性行为. 随机生存森林模型显示高准确度,确定冲动性和收入作为关键风险因素.

关键词:
攻击性 侵略性 攻击性考克斯模型 考克斯模型机器学习是机器学习.在ROC曲线上,ROC曲线精神分裂症是一种精神分裂症.

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科学领域:

  • 精神病学是一个精神病学.
  • 机器学习 机器学习
  • 行为科学 行为科学

背景情况:

  • 精神分裂症是一种复杂的精神障碍.
  • 攻击性行为是第一个情节精神分裂症患者的一个重大问题.
  • 预测侵略性行为对于及时干预至关重要.

研究的目的:

  • 预测第一发精神分裂症患者的攻击性行为的风险.
  • 为此预测评估时间到事件机器学习模型的性能.
  • 为了确定这一群体中攻击性行为的关键预测因素.

主要方法:

  • 一个队列研究设计被采用了216名第一发精神分裂症患者.
  • 对患者进行了24个月的跟踪,以评估攻击性行为.
  • 开发了三种生存模型,并使用C指数,时间依赖AUC和AUPRC等指标进行评估. 对于特征的重要性,使用了沙普利添加式解释 (SHAP).

主要成果:

  • 在随访期间,在16.67%的患者中观察到侵略性行为.
  • 随机生存森林模型表现最好 (C指数=0.79,时间依赖的AUC=0.91,AUPRC=0.59).
  • 高冲动性,更高的平均月收入,更大的家庭规模,失业率和较低的EPQ-L得分被确定为重要的预测因素.

结论:

  • 随机生存森林模型在预测第一发精神分裂症的攻击性行为方面是有效的.
  • 冲动性和平均月收入是影响侵略行为的最重要的因素.
  • 这些发现可以有助于为处于危险的个人制定有针对性的干预措施.