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Related Concept Videos

Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

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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.
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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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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.
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Negative and Cognitive Symptoms of Schizophrenia01:30

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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.
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Schizophrenia01:17

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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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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.
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Related Experiment Video

Updated: Oct 1, 2025

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
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(Attenuated) hallucinations join basic symptoms in a transdiagnostic network cluster analysis.

Natalia Jimeno1, Javier Gomez-Pilar2, Jesus Poza3

  • 1Department of Psychiatry, School of Medicine, University of Valladolid, Valladolid, Spain; Department of Psychiatry and Psychotherapy, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany; GINCYL, Research Group on Clinical Neuroscience of Castile and Leon, Valladolid, Spain.

Schizophrenia Research
|March 1, 2022
PubMed
Summary
This summary is machine-generated.

Hallucinations with insight, even if mild, are distinct from frank psychotic hallucinations. This finding suggests careful evaluation is needed before diagnosing psychosis or prescribing antipsychotic medication.

Keywords:
attenuated psychotic symptombasic symptomdepressionhallucinationmodularity analysispsychosis

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Network Analysis

Background:

  • Hallucinations are key psychosis symptoms and part of the Hierarchical Taxonomy Of Psychopathology (HiTOP) psychosis superspectrum.
  • Understanding the psychopathological relevance of hallucinations requires dimensional placement within transdiagnostic symptom networks.

Purpose of the Study:

  • To investigate the dimensional placement of hallucinations within a dense transdiagnostic network of basic, attenuated, and frank psychotic symptoms.
  • To explore symptom clustering and the role of insight in differentiating hallucinatory experiences.

Main Methods:

  • Utilized Newman's modularity analysis on an existing network of 86 symptoms.
  • Assessed symptoms using the Schizophrenia Proneness Instrument, Adult version (SPI-A), Structured Interview for Psychosis-Risk Syndromes (SIPS), and Positive And Negative Syndrome Scale (PANSS).
  • Analyzed data from three adult samples: clinical high-risk (n=203), first-episode psychosis (n=153), and major depression (n=104).

Main Results:

  • Identified three distinct symptom clusters: 'subjective disturbances,' 'positive symptoms and behaviors,' and 'negative and anxious-depressive symptoms.'
  • Attenuated hallucinations (from SIPS and PANSS) clustered with basic symptoms in 'subjective disturbances.'
  • Frank positive symptoms grouped into 'positive symptoms and behaviors,' differentiating them from attenuated experiences.

Conclusions:

  • Insight is crucial for distinguishing true psychotic hallucinations from attenuated experiences.
  • Hallucinations experienced with any degree of insight should not solely diagnose frank psychosis or justify antipsychotic medication.