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Related Concept Videos

Schizophrenia01:17

Schizophrenia

1.0K
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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Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

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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
The genetic basis of schizophrenia is strongly supported by family and twin...
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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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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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Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

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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...
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A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia
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Sudden death in schizophrenia.

Kevin J Li1,2,3, Aaron P Greenstein1,2,3, Lynn E Delisi1,2,3

  • 1VA Boston Healthcare System.

Current Opinion in Psychiatry
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Summary
This summary is machine-generated.

Sudden unexpected death in schizophrenia patients is often sudden cardiac death linked to antipsychotics like clozapine. Other risks include lifestyle factors and cardiovascular disease, with a need for genetic research.

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Area of Science:

  • Psychiatry
  • Cardiology
  • Pharmacology

Background:

  • Sudden unexpected death (SUD) is a critical concern in schizophrenia.
  • Sudden cardiac death (SCD) constitutes a significant portion of SUD, often linked to cardiovascular causes.

Purpose of the Study:

  • To review recent literature on sudden death in schizophrenia patients.
  • To synthesize evidence on causes and risk factors for SUD in this population.

Main Methods:

  • Literature review of recent studies on sudden death in schizophrenia.
  • Synthesis of findings regarding causes, risk factors, and genetic data.

Main Results:

  • Antipsychotic medications, particularly clozapine, risperidone, and olanzapine, are associated with increased SCD risk.
  • Non-antipsychotic-related SCD risk factors include obesity, smoking, dyslipidemia, diabetes, hypertension, age, sex, and cardiovascular disease history.
  • Other SUD causes include hematological (agranulocytosis, sepsis) and pulmonary (pulmonary embolism, aspiration pneumonia) issues.

Conclusions:

  • There is a significant lack of genetic and pharmacogenetic data on SUD in schizophrenia.
  • Future research should focus on genetic factors, molecular mechanisms, early risk detection, and preventive strategies for SUD in schizophrenia.