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Related Concept Videos

Schizophrenia01:17

Schizophrenia

647
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...
647
Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

396
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...
396
Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

474
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...
474
Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

428
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...
428
Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

372
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,...
372
Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

442
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...
442

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Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
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[Does symptomatic schizophrenia exist?].

G Huber1

  • 1Psychiatrische Klinik, Poliklinik der Universität Bonn.

Psychiatrie, Neurologie, Und Medizinische Psychologie
|January 1, 1990
PubMed
Summary
This summary is machine-generated.

Symptomatic schizophrenias, arising from known brain diseases, manifest all typical symptoms, including first-rank symptoms. These conditions, potentially linked to the limbic system, offer insights into schizophrenia research.

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Area of Science:

  • Neurology
  • Psychiatry
  • Neurobiology

Context:

  • The existence of "symptomatic schizophrenias" has been debated since the 1920s.
  • Symptomatic psychoses can arise from definable brain diseases, presenting with a full spectrum of schizophrenic symptoms.
  • These conditions are often overlooked, with diagnoses sometimes only confirmed post-mortem.

Purpose:

  • To present cases of schizophrenic psychoses caused by known brain diseases.
  • To explore the phenomenological similarities between symptomatic schizophrenia and epilepsy-related syndromes.
  • To investigate the neurobiological underpinnings, particularly the role of the limbic system, in symptomatic schizophrenia.

Summary:

  • All schizophrenic symptoms, including K. Schneider's first-rank symptoms, can occur in somatically founded psychoses.
  • Paroxysmal transition syndromes in psychomotor epilepsy may serve as a model for schizophrenia research.
  • Both acute/reversible and rare recurrent/chronic courses of symptomatic schizophrenia exist, potentially explained by rarely met developmental conditions.
  • Findings suggest the limbic system is significant for symptomatic psychoses, with pre- and post-psychotic stages resembling aura symptoms.

Impact:

  • Symptomatic schizophrenia, though rare, provides a valuable model for understanding idiopathic schizophrenia.
  • Reconceptualizing schizophrenia as a neurobiochemical disorder, rather than a traditional process, aligns with findings in symptomatic cases.
  • Understanding the organic basis of these psychoses can lead to improved diagnostic and therapeutic strategies.