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Related Concept Videos

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Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
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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 end"...
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Ischemic Stroke ll: Pathophysiology01:15

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Related Experiment Video

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Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke
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Visual neglect following stroke: current concepts and future focus.

Darren S J Ting1, Alex Pollock, Gordon N Dutton

  • 1Victoria Infirmary, Glasgow, UK.

Survey of Ophthalmology
|February 22, 2011
PubMed
Summary
This summary is machine-generated.

Visual neglect, a stroke-related attention deficit, impacts daily life. Early diagnosis and multidisciplinary rehabilitation, including promising techniques like prism adaptation, are crucial for managing this condition.

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Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke
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A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
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A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

Published on: April 11, 2025

Area of Science:

  • Neurology
  • Neuroscience
  • Rehabilitation Medicine

Background:

  • Visual neglect is a common post-stroke neurological disorder affecting attention to one side of space.
  • It significantly impacts functional independence but often lacks professional awareness and clinical guidelines.
  • Emerging evidence suggests neglect stems from disrupted internal spatial representations, not sensory deficits.

Purpose of the Study:

  • To review the current understanding of visual neglect.
  • To highlight diagnostic methods and potential rehabilitation strategies.
  • To emphasize the need for further research in optimizing treatment.

Main Methods:

  • Review of existing literature on visual neglect.
  • Discussion of diagnostic tools including patient history, line bisection, star cancellation, and Catherine Bergego Scale.
  • Overview of current and emerging rehabilitation techniques.

Main Results:

  • Visual neglect involves attentional deficits on the contralesional side, linked to cortical and white-matter dysfunction.
  • Diagnosis requires thorough patient/family history and specific clinical assessments.
  • Promising rehabilitation strategies include prism adaptation, visual scanning therapy, and virtual reality.

Conclusions:

  • Visual neglect requires early recognition and a multidisciplinary approach for effective management.
  • While no single treatment is definitive, several methods show promise.
  • High-quality research is essential to establish optimal rehabilitation strategies for visual neglect.