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Light Exposure Study

Study Overview:
We are conducting a study at the University of Arizona to understand the effectiveness of a six-week course of light exposure on cognitive functioning, mood, activity, and sleep in people that have suffered a head injury leading to a mild traumatic brain injury or “concussion.” Participants will undergo a series of surveys and tasks that measure emotional and cognitive ability. Throughout the visit, we will be recording heart rate using a small heart rate monitor. Participants will also complete two one-hour MRI scans, where “pictures” of your brain will be taken while you rest quietly. Participants will also be asked to wear a wrist activity monitor and complete daily sleep diaries.

Time Commitment:
The entire study lasts 13 weeks and includes six weeks of daily light exposure using a portable light device. There will be four visits to Banner UMC over the course of the study.

Eligible participants will receive up to $1000 for full completion of all study activities.

Potential Risks:
Magnetic resonance (MR) technology does not use ionizing radiation. Instead, it uses strong magnetic fields and radio waves to collect the images and data. As a result, any individual with metal in their body is not eligible for this study. By following the right safeguards, there are no known hazards or risks with MR techniques. Additionally, the light exposure devices have no known significant harmful effects.

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