WithdrawnNot Applicable

Visual Mode Switching in Color Perception

Stopped: Grant was not funded

United States0Started 2026-01-01

Plain-language summary

Participants will be given experience wearing colored lenses that add a tint to the environment. Changes in visual perception and neural processing that arise as a result of this experience will be measured. These are expected as participants learn to switch to "colored lenses mode" where the effects of the lenses are discounted and colors appear more normal as soon as the lenses are put on.

Who can participate

Age range

18 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Normal or corrected to normal vision by contact lenses * No known visual disorders * Little to no experience in tinted environments (e.g. dark rooms, swimming goggles) Exclusion Criteria: * Abnormal color vision

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in unique yellow settings

Timeframe: Change will be assessed over the entire study, by comparing a pre-test the day before the intevention (which lasts 5 days) to a post-test the day after the intervention.

Change in BOLD functional MRI activity

Timeframe: Change will be assessed over the entire study, by comparing a pre-test the day before the intevention (which lasts 5 days) to a post-test the day after the intervention.

Change in EEG activity

Timeframe: Change will be assessed over the entire study, by comparing a pre-test the day before the intevention (which lasts 5 days) to a post-test the day after the intervention.

Trial details

NCT IDNCT05779228

SponsorUniversity of Minnesota

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2031-02-04

View on ClinicalTrials.gov More Perception of Things Changing Color trials

Plain-language summary

Who can participate

Age range

18 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

Change in unique yellow settings

Timeframe: Change will be assessed over the entire study, by comparing a pre-test the day before the intevention (which lasts 5 days) to a post-test the day after the intervention.

Change in BOLD functional MRI activity

Timeframe: Change will be assessed over the entire study, by comparing a pre-test the day before the intevention (which lasts 5 days) to a post-test the day after the intervention.

Change in EEG activity

Timeframe: Change will be assessed over the entire study, by comparing a pre-test the day before the intevention (which lasts 5 days) to a post-test the day after the intervention.