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Related Concept Videos

Negative and Cognitive Symptoms of Schizophrenia01:30

Negative and Cognitive Symptoms of Schizophrenia

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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.
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,...
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Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

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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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Related Experiment Video

Updated: Nov 20, 2025

Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking
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Association between global visual scanning and cognitive function in schizophrenia.

Wei Huang1, Chen Chen2, Xianjun Chen3

  • 1Department of Psychiatry and Psychology, No. 923 Hospital of Joint Logistic Support Force of Chinese People's Liberation Army (PLA), No. 52 Zhiwu Road, Nanning, 530000, China.

Asian Journal of Psychiatry
|January 19, 2021
PubMed
Summary
This summary is machine-generated.

Schizophrenia patients show visual scanning abnormalities linked to cognitive deficits. Eye movement patterns, particularly during landscape viewing, may serve as biomarkers for cognitive dysfunction in schizophrenia.

Keywords:
CognitionEye movementSchizophreniaVisual scanning

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Science

Background:

  • Abnormalities in global visual scanning are recognized in schizophrenia.
  • The link between visual scanning and cognitive function in schizophrenia remains understudied.

Purpose of the Study:

  • To investigate the association between global visual scanning and cognitive function in individuals with schizophrenia.

Main Methods:

  • Eye movements were recorded in 28 schizophrenia patients and 21 healthy controls during a free viewing test.
  • Cognitive function was assessed using the MATRICS Consensus Cognitive Battery (MCCB).

Main Results:

  • Schizophrenia patients displayed abnormal eye movements and cognitive deficits compared to controls.
  • Fixation duration during visual scanning was significantly associated with cognitive dysfunction.
  • Eye movement patterns during landscape scanning showed a stronger relation to cognitive deficits than face scanning.

Conclusions:

  • Free visual scanning is associated with cognitive functions in schizophrenia.
  • Specific eye movement measures during visual exploration may act as potential biomarkers for cognitive deficits in schizophrenia.