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Related Concept Videos

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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Visual System01:26

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Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
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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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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.
Thought Disorders
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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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Vision01:24

Vision

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Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
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Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior
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The Early Visual System in Schizophrenia.

Steven M Silverstein1, Pamela D Butler2,3

  • 11Departments of Psychiatry, Neuroscience, and Ophthalmology, University of Rochester Medical Center, Rochester, New York, USA;

Annual Review of Vision Science
|March 5, 2026
PubMed
Summary
This summary is machine-generated.

Schizophrenia involves more than cognitive decline, with early visual system changes offering insights into brain and body health. These visual biomarkers can predict psychosis onset and disease progression.

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Psychiatry

Background:

  • Schizophrenia is traditionally viewed as a cognitive disorder.
  • Emerging evidence highlights visual system alterations in schizophrenia, including retinal and occipital lobe changes.
  • These changes correlate with neuroinflammation and cardiometabolic factors, suggesting a multisystem condition.

Purpose of the Study:

  • To emphasize the significance of early visual system changes in schizophrenia.
  • To highlight the potential of visual biomarkers for understanding schizophrenia's pathophysiology.
  • To explore the predictive value of visual markers for clinical outcomes.

Main Methods:

  • Review and synthesis of current research on visual system alterations in schizophrenia.
  • Analysis of the relationship between visual changes, neuroinflammation, and cardiometabolic factors.
  • Evaluation of visual markers as biomarkers for predicting psychosis onset, disease course, and cognitive decline.

Main Results:

  • Early visual system changes in schizophrenia serve as indicators of broader brain and systemic health.
  • Visual biomarkers are valuable for predicting the onset of first psychotic episodes.
  • Visual markers can also predict long-term disease course and cognitive decline in schizophrenia.

Conclusions:

  • Schizophrenia should be conceptualized as a multisystem condition, not solely a cognitive disorder.
  • Early visual system changes provide a unique window into the brain and body in schizophrenia.
  • Visual markers hold significant potential for early detection, monitoring, and management of schizophrenia.