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Related Concept Videos

Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

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

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

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 loosely...
Schizophrenia01:17

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

Positive Symptoms Schizophrenia: Hallucinations and Delusions

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...

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Related Experiment Video

Updated: Jun 14, 2026

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

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Published on: September 8, 2021

Alexithymia in schizophrenia.

Julie D Henry1, Phoebe E Bailey, Courtney von Hippel

  • 1School of Psychology, University of New South Wales, Sydney, New South Wales, Australia. julie.henry@unsw.edu.au

Journal of Clinical and Experimental Neuropsychology
|April 8, 2010
PubMed
Summary
This summary is machine-generated.

Schizophrenia patients show increased alexithymia (difficulty understanding emotions) on performance tasks, linked to cognitive function and alogia. Self-reported alexithymia did not differ between groups, suggesting deficits emerge with higher cognitive demands.

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Last Updated: Jun 14, 2026

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Investigating the Effects of Antipsychotics and Schizotypy on the N400 Using Event-Related Potentials and Semantic Categorization

Published on: November 19, 2014

Area of Science:

  • Psychiatry
  • Neuroscience
  • Cognitive Psychology

Background:

  • Schizophrenia frequently causes emotional and social behavior changes.
  • Alexithymia, characterized by impaired emotion understanding, is poorly understood in schizophrenia.
  • Emotional deficits are common in schizophrenia, but specific impacts on alexithymia require further investigation.

Purpose of the Study:

  • To investigate alexithymia in individuals with schizophrenia using both self-report and performance-based measures.
  • To examine the relationship between alexithymia, cognitive functioning, clinical symptoms, and negative affect in schizophrenia.
  • To determine if schizophrenia affects perceived versus performance-based alexithymia.

Main Methods:

  • Participants included individuals with schizophrenia (n=29) and nonclinical controls (n=30).
  • Measures included self-report and performance-based assessments of alexithymia, cognitive functioning, clinical symptomatology, and negative affect.
  • Statistical analyses compared groups and examined correlations between variables.

Main Results:

  • Individuals with schizophrenia exhibited heightened alexithymia on a performance task.
  • Performance-based alexithymia difficulties correlated with cognitive functioning and alogia.
  • No significant group differences were found in self-reported alexithymia.
  • Self-reported alexithymia correlated with negative affect in the schizophrenia group.

Conclusions:

  • Alexithymia may not be inherently affected in schizophrenia, as indicated by self-report measures.
  • Schizophrenia-related deficits in emotion understanding become apparent under increased cognitive load.
  • Performance-based measures reveal cognitive challenges in emotion processing for individuals with schizophrenia.