NCT02919137

Systematically Assessing Effects of Colored Light on Humans With a Multi-modal Approach (Substudy 7 of 7)

Systematically Assessing Effects of Colored Light on Humans With a Multi-modal Approach

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 23 (actual)
• Sponsor: University of Bern · Academic / Other
• Sex: All
• Age: 18 Years – 50 Years
• Healthy volunteers: Accepted

Summary

NOTE: This is the seventh of in total 7 sub-studies related to the Ethics Committee of the Canton of Bern Ref. No. KEK-BE 2016-00674. This sub-study includes 50 participants and 8 arms, in total 350 participants will be assessed in all 7 sub-studies. General study information: This is a randomized, cross-over, quantitative study, which investigates physiological variables, mood, and affect of healthy participants in response to colored light exposure. The Participants take part in 5-8 arms and are exposed to colored light only, or are additionally asked to solve cognitive tasks during the colored light exposure. Primary aim is to measure the change in several physiological variables, mood, and affect during colored light exposure of 15 or 45 minutes. The risk for the participants is negligible and comparable to the risk during daily life.

Conditions

• Exposure to Man-made Visible Light

Interventions

Type	Name	Description
OTHER	Visible light exposure	Subjects will be exposed to visible colored light for 45 minutes. The visible light will be generated by red-green-blue light emitting diodes light cans.

Timeline

• Start date: 2025-06-01
• Primary completion: 2025-06-01
• Completion: 2027-07-31
• First posted: 2016-09-29
• Last updated: 2025-07-29

Locations

1 site across 1 country: Switzerland