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The purpose of this study is to examine the effects of complex, broad-band spectra light on the production of melatonin in humans.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Light 1 | Experimental | Light 1 will have an altered color composition as compared with a standard LED bulb. |
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| Light 2 | Active Comparator | Light 2 will be a standard LED bulb. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Light - standard | Device | Light will be given during the night to determine its effects on melatonin suppression. This light will be an LED with standard spectral distribution |
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| Measure | Description | Time Frame |
|---|---|---|
| Melatonin suppression | The amount of declination of salivary melatonin concentrations between the start of the light and the end of the light (4 hours later) will be compared between the conditions. | 4 Hours |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| VA Palo Alto Health Care System | Palo Alto | California | 94304 | United States |
All relevant individual data will be published.
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| Light - alternate | Device | Light will be given during the night to determine its effects on melatonin suppression. This light will be an LED with an altered spectral distribution (different color) |
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