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Understanding Visual Processing After Occipital Stroke

NCT06352086 · Status: WITHDRAWN · Type: OBSERVATIONAL

Last updated 2024-10-08

No results posted yet for this study

Summary

The purpose of this study is to investigate how visual orientation discrimination and metacognition (i.e., perceptual confidence) are affected by occipital stroke that causes hemianopia and quadrantanopia in adults. This research will provide insight as to how the residual visual system, which not directly damaged by the occipital stroke, processes orientation (assayed in terms of orientation discrimination) and metacognition (by measuring perceptual confidence for orientation discrimination). These measures will be used to refine computational models that attempt to explain how the brain copes with loss of primary visual cortex (V1) as a result of stroke. This knowledge is essential to devise more effective visual rehabilitation therapies for patients suffering from occipital strokes.

Conditions

  • Vision Loss Partial
  • Vision; Loss, Both Eyes
  • Hemianopia, Homonymous
  • Hemianopia
  • Quadrantanopia
  • Stroke, Ischemic
  • Stroke - Occipital Infarction
  • Cortical Blindness
  • Occipital Lobe Infarct
  • Peripheral Visual Field Defect of Both Eyes

Sponsors & Collaborators

  • University of Rochester

    lead OTHER

Eligibility

Min Age
21 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-12-31
Primary Completion
2028-09-30
Completion
2029-09-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06352086 on ClinicalTrials.gov