Effect of Lighting Supplementation on Daytime Cognition

Mass General Brigham

Status

Unknown

Conditions

Non-visual Effects of Light

Treatments

Device: Visible light

Study type

Interventional

Funder types

Other

Identifiers

NCT04745312

2019P000900

2020A011565 (Other Grant/Funding Number)

Details and patient eligibility

About

The aim of the study is to examine the efficacy of supplementing sub-optimal ambient room lighting with a task lamp on working memory and procedural learning.

Enrollment

16 estimated patients

Sex

All

Ages

18 to 30 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

Aged between 18-30 years;
Healthy (no medical, psychiatric or sleep disorders;
Non-smoking for at least 6 months;
Body Mass Index of >18 or <30 kg/m2;
Able to maintain 7-hour consistent sleep schedule during the study
Able to refrain from caffeine, alcohol, medication and supplements during the study

Exclusion criteria

History of alcohol or substance abuse;
positive result on drugs of abuse urine toxicology;
Current or past history of sleep disorders, including but not limited to obstructive sleep apnea, narcolepsy, insomnia, or any significant sleep complaint
Psychiatric disorder, or first degree relative with a psychiatric disorder
Recent acute or chronic medical disorder
Use of drugs or medication (birth control OK) likely to affect sleep, alertness or light sensitivity, as determined by the investigators
Visual disorder, including but not limited to color blindness, or family history of glaucoma
Pregnancy or lactation
Shift work (> 2 nights / week in the last 3 months and not during the study)
Transmeridian travel (2 or more time zones) in the past 3 months
Any other reason as determine by the Principal Investigator