Investigating Brain Function in People With and Without Visual Snow Syndrome Using Adaptation to Visual Stimuli
Visual Perception in Visual Snow Syndrome
University of Minnesota
100 participants
Apr 11, 2025
INTERVENTIONAL
Conditions
Summary
The goal of this study is to learn more about the brain pathways and activity involved in creating Visual Snow Syndrome (VSS). The main questions it aims to answer are: * Does VSS arise from spontaneous activity in brain pathways? * Where in the brain does the activity contributing to VSS arise? * How does brain activity contribute to VSS? Participants will: 1. Undergo assessments and questionnaires to understand visual and mental symptoms, cognitive, and sensory function. 2. Make visual judgements based on images presented to them both inside and outside a magnetic resonance imaging (MRI) machine. 3. Undergo scanning of their brain while inside of an MRI machine.
Eligibility
Plain Language Summary
Simplified for easier understanding
This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.
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Interventions
Presentation of visual stimuli to quantify the appearance of visual snow or its effects in the visual system of the brain.
Administration of clinical assessments and questionnaires to gather information about visual and mental symptoms, cognitive, and sensory function.
7 tesla fMRI data will be acquired during visual paradigms designed to measure neural responses with and without adaptation.
7 tesla MRS data will be acquired to quantify the concentrations of different brain chemicals in brain regions including visual cortex.
Locations(1)
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NCT06961864