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Schizophrenia01:17

Schizophrenia

280
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...
280
Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

236
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...
236
Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

221
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...
221
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

1.1K
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...
1.1K
Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

150
Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
150
Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

174
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...
174

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Video Experimental Relacionado

Updated: Oct 5, 2025

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Na&#239;ve Adolescents at High Risk for Psychosis
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Esquizofrenia

Sameer Jauhar1, Mandy Johnstone2, Peter J McKenna3

  • 1Department of Psychological Medicine, Institute of Psychiatry, Psychology, and Neuroscience, King's College, London, UK.

Lancet (London, England)
|January 30, 2022
PubMed
Resumen
Este resumen es generado por máquina.

La esquizofrenia es un trastorno cerebral complejo que afecta a hombres y mujeres de manera diferente, con resultados variados. La investigación explora sus fundamentos genéticos, ambientales y neurobiológicos, junto con las estrategias de tratamiento actuales y futuras.

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Área de la Ciencia:

  • La neurociencia
  • La psiquiatría
  • La genética

Sus antecedentes:

  • La esquizofrenia presenta desafíos etiológicos y terapéuticos significativos, contrariamente a la creencia popular con respecto a su prevalencia y resultado.
  • Los síntomas se clasifican en síndromes positivos, negativos y de desorganización, con el deterioro cognitivo ahora reconocido como una característica clave.

Objetivo del estudio:

  • Proporcionar una visión global de la comprensión actual de la etiología, las características clínicas y el tratamiento de la esquizofrenia.
  • Discutir los debates en curso y las futuras direcciones de investigación en esquizofrenia.

Principales métodos:

  • Revisión de los hallazgos establecidos sobre la presentación clínica, la neurobiología y la genética de la esquizofrenia.
  • Análisis de los enfoques terapéuticos actuales y los conceptos emergentes en la investigación de la esquizofrenia.

Principales resultados:

  • La esquizofrenia afecta a los hombres modestamente más que a las mujeres, y los resultados varían.
  • Los hallazgos establecidos incluyen cambios estructurales cerebrales (agrandamiento ventricular, reducción de volumen) y alteraciones funcionales en las redes de la corteza frontal.
  • Los trastornos neuroquímicos (dopamina, receptores NMDA), la herencia poligénica y los factores de la vida temprana están implicados.

Conclusiones:

  • Los fármacos que bloquean los receptores de dopamina siguen siendo el tratamiento principal, y la terapia cognitivo-conductual muestra efectos limitados.
  • La esquizofrenia se ve cada vez más como un extremo de un continuo, con debates en curso sobre factores causantes como el cannabis y la adversidad infantil, y el impacto de la intervención temprana.