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Related Concept Videos

Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

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 studies.
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

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 the...
Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

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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Related Experiment Video

Updated: May 28, 2026

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
05:14

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra

Published on: September 8, 2021

Postmortem studies in schizophrenia.

P J Harrison1

  • 1Department of Psychiatry, University of Oxford, Oxford, UK.

Dialogues in Clinical Neuroscience
|October 29, 2011
PubMed
Summary
This summary is machine-generated.

Postmortem studies reveal schizophrenia involves intrinsic structural brain abnormalities, not primarily degenerative changes. Neurochemical alterations in dopamine, glutamate, and GABA systems are also evident, suggesting developmental origins.

Keywords:
cytoarchitecturedopamineglutamatemorphometryneurochemistryneuropathologysynapse

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Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans
08:29

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

Published on: December 18, 2016

Related Experiment Videos

Last Updated: May 28, 2026

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
05:14

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra

Published on: September 8, 2021

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans
08:29

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

Published on: December 18, 2016

Area of Science:

  • Neuroscience
  • Psychiatry
  • Neuropathology

Background:

  • Postmortem studies have historically investigated schizophrenia pathology.
  • Limited progress was made for decades.
  • Recent advancements in methodologies and brain imaging have revitalized the field.

Purpose of the Study:

  • To review cardinal findings in postmortem studies of schizophrenia.
  • To discuss conceptual and methodological challenges in this research area.

Main Methods:

  • Analysis of postmortem brain tissue.
  • Integration of brain imaging data.
  • Review of historical and recent research designs.

Main Results:

  • Schizophrenia is characterized by intrinsic structural cerebral abnormalities.
  • The neuropathology involves cytoarchitectural changes, likely developmental.
  • Evidence indicates alterations in neurotransmitter systems: dopamine, glutamate, serotonin, and gamma-aminobutyric acid (GABA).

Conclusions:

  • Structural brain abnormalities are integral to schizophrenia.
  • The underlying process is developmental, not degenerative.
  • Postmortem research, despite challenges, provides crucial insights into schizophrenia's neuropathology.