Visual Snow Syndrome (VSS)

Who do I contact if I am interested in this study?

Contact info:

Phone number: 612-625-2502
Email address: schallmolab@umn.edu
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What is the purpose of this study?

Visual Snow Syndrome (VSS) is a condition in which people see constant flickering dots/specks over their surroundings. This experience is like ‘television snow’ and may interfere with daily tasks, such as driving and reading. The purpose of this study is to understand how people with Visual Snow Syndrome perceive and process the world. Our research is designed to move the field forward by providing new methods to measure visual snow and assessing differences in brain processing between people with and without VSS.

Who can participate in this study?

If you:

Are between the ages of 18 and 60 years old
Have normal (20/25 or better in each eye) or corrected-to-normal vision (MR-compatible glasses will be provided as needed)

What would I do if I participated?

In person visits will take place at the University of Minnesota’s Center for Magnetic Resonance Research (CMRR) located on the UoM East Bank campus. In total, there are 1-3 appointments for a total of 4.5 and 15.5 hours. During visits, participants would complete:

• Interviews and questionnaires

• Vision assessments

• Computer tasks

• MRI scanning

Does this study compensate?

Participants will be compensated at a rate of $20 per hour. Parking will be free or paid for. Transportation in the form of a taxi can also be arranged free of charge. For individuals who live further than 40 miles away, driving will be reimbursed at the standard University of Minnesota rate up to a maximum of 400 miles roundtrip per study visit.

IRB#: STUDY00014113

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