Healthy adults
Conditions
Interventions
Behavior control 5 hours light exposure
Sponsors
National Center of Neurology and Psychiatry
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: Males between 20 and 35 years of age
Exclusion criteria
Exclusion criteria: 1. Volunteers who are taking or have a history of a pre-existing medical disease (cardiovascular, liver, endocrine, brain/neurological, psychiatric, etc.) or therapeutic medication that may affect results of the study. 2. Volunteers with abnormal color vision. 3. Volunteers who have engaged in jet lag travel or shift work at least six months prior to the experiment. 4. Volunteers who are dependent on alcohol or have excessive drinking habits. 5. Volunteers who have and excessive smoking habits. 6. Volunteers who have habits of taking drugs or supplements that affect sleep. 7. Other persons determined to be inappropriate by the principal investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Discovery of indexes associated with the degree of melatonin suppression (light responsiveness of the biological clock) | — |
Secondary
| Measure | Time frame |
|---|---|
| Constraction of a formula for estimating the degree of melatonin suppression. Dose-response relationship between melatonin suppression and illuminance in Japanese. | — |
Countries
Japan
Contacts
Public ContactTaisuke Eto
National Center of Neurology and Psychiatry Department of Sleep-Wake Disorders, National Institute of Mental Health
Outcome results
None listed