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Related Concept Videos

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
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Psychological and Sociocultural Causes of Schizophrenia01:29

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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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Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

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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.
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Gene-Environment Interactions01:20

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Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
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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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Causes of Social Behavior III: Biological and Environmental Influences01:28

Causes of Social Behavior III: Biological and Environmental Influences

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Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...
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A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia
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[Schizophrenia: genes, environment and neurodevelopment].

K Q Do1

  • 1Centre de neurosciences psychiatriques, Département de psychiatrie, CHUV. kim.do@chuv.ch

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Psychoses involve genetic and environmental factors impacting brain development. Early antioxidant intervention may prevent neuronal damage and subsequent clinical symptoms.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Developmental Biology

Context:

  • Psychoses develop from gene-environment interactions during critical neurodevelopmental periods.
  • Oxidative stress from redox imbalance damages neurons, impairing brain circuitry.
  • Childhood and adolescence are vulnerable stages for environmental insults.

Purpose:

  • To investigate the role of redox imbalance in psychosis development.
  • To explore the potential of antioxidants in preventing neurodevelopmental impairments.

Summary:

  • Psychoses result from genetic and environmental factors interacting during brain development.
  • Redox imbalance and oxidative stress contribute to neuronal damage and impaired brain connectivity.
  • Antioxidants may prevent these developmental insults and clinical outcomes.

Impact:

  • Highlights critical neurodevelopmental periods for psychosis vulnerability.
  • Suggests antioxidants as a potential preventative strategy for psychosis.
  • Emphasizes the link between oxidative stress and psychiatric disorders.