RecruitingNot ApplicableNCT05616819

Effect of Morning Light Exposure on Mood

Regulating Mood and Suicidal Ideation With Morning Light Exposure Treatment

Sponsor

University of Arizona

Enrollment

480 participants

Start Date

Jul 1, 2023

Study Type

INTERVENTIONAL

Conditions

Suicidal Ideation Regulation, Emotion

Summary

Mood dysregulation and suicidal ideation are closely associated with disruption of sleep and circadian rhythms. Moreover, sleep problems and circadian disruption are commonplace features of military life. Critically, specifically timed light exposure plays a powerful role in regulating mood, circadian rhythms, and sleep-wake patterns. Therefore, investigators propose to conduct a large-scale clinical trial on the effectiveness of morning light exposure treatment for improving sleep-wake patterns, emotional and mental health, and suicidal thoughts in military personnel.

Eligibility

Min Age: 18 YearsMax Age: 60 Years

Inclusion Criteria4

Ages 18-60 years
At least an 8th grade reading level
Score ≥ 5 (i.e., mild depression or greater) on the Patient Health Questionnaire 9 (PHQ-9)
Service member of any Armed Forces branch, including active duty, Reserve, or National Guard

Exclusion Criteria10

Not actively serving in an Armed Force branch
Scored (i.e., < 5) range on the PHQ-9 (non-depressed)
Pregnant or trying to become pregnant
Breastfeeding
History of psychotic disorder or manic episodes
Bipolar disorder
Diseases of the eye
Have had cataract surgery
Frequent and light-sensitive migraine headaches
Self-reported plan to regularly engage in nightshift work during the 6-week course of the study

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Interventions

OTHERActive light exposure

Active light at the wave length of 470nm will be emitted for 30 minutes over a 2 week time frame, from commercially available ayo glasses, as a method to regulated circadian rhythm.

OTHERPlacebo light exposure

Placebo light at the wave length of 578nm will be emitted for 30 minutes over a 2 week time frame, from commercially available ayo glasses, as a control to investigate the regulation of circadian rhythm.