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Related Concept Videos

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...
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Psychosis: Goals of Pharmacotherapy

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. For...
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Schizophrenia

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 diagnosed.
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...
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.
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Updated: May 8, 2026

Development of a Virtual Reality Assessment of Everyday Living Skills
10:32

Development of a Virtual Reality Assessment of Everyday Living Skills

Published on: April 23, 2014

A proposal for reframing schizophrenia research.

Vicente Molina1, José A Blanco

  • 1Psychiatry Service, University Hospital of Valladolid, Valladolid, Spain. vmolina@med.uva.es

The Journal of Nervous and Mental Disease
|September 3, 2013
PubMed
Summary
This summary is machine-generated.

Schizophrenia research struggles with replicating biological findings due to patient sample heterogeneity. A new approach focusing on consistent biological anomalies may improve reliability in schizophrenia studies.

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Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack
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Published on: May 15, 2020

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Last Updated: May 8, 2026

Development of a Virtual Reality Assessment of Everyday Living Skills
10:32

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Published on: April 23, 2014

Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack
07:31

Implementation of a Real-Time Psychosis Risk Detection and Alerting System Based on Electronic Health Records using CogStack

Published on: May 15, 2020

Area of Science:

  • Neuroscience
  • Psychiatry
  • Genetics

Background:

  • Current schizophrenia diagnosis relies on expert consensus and clinical evidence.
  • Replication of biological findings in schizophrenia research is consistently low.
  • Existing diagnostic criteria may contribute to patient sample heterogeneity.

Purpose of the Study:

  • To review previous work and identify reasons for the low replication of biological findings in schizophrenia.
  • To propose a new framework for schizophrenia research that addresses heterogeneity.
  • To improve the reliability of biological markers in schizophrenia.

Main Methods:

  • Systematic review of previously published research on schizophrenia.
  • Analysis of factors contributing to heterogeneity in patient samples.
  • Conceptual framework development for future research.

Main Results:

  • Patient sample heterogeneity, stemming from current diagnostic criteria, is a significant barrier to replication.
  • Low replication rates impede the acceptance of biological findings as characteristic of schizophrenia.
  • Identification of consistently replicated biological anomalies is crucial.

Conclusions:

  • The heterogeneity of patient samples is a primary reason for the low replication of biological findings in schizophrenia.
  • A novel research framework focusing on the correlates of replicated biological anomalies is proposed.
  • This approach may enhance the validity and reliability of schizophrenia research.