Effects of Different Light Intensities in the Morning on Dim Light Melatonin Onset.
- Resource Type
- Article
- Authors
- Kozaki, Tomoaki; Toda, Naohiro; Noguchi, Hiroki; Yasukouchi, Akira
- Source
- Journal of Physiological Anthropology; May2011, Vol. 30 Issue 3, p97-102, 6p
- Subject
- MELATONIN
PHYSIOLOGICAL effects of light
LIGHT sources
FLUORESCENT lighting
- Language
- ISSN
- 18806791
The article presents a study on the effects of exposure to light in the morning on dim light melatonin onset (DLMO). Eleven healthy males participated in experiments for different light condition. The findings suggested that exposure to a necessary intensity from an ordinary light source affects melatonin secretion. The study provided applicational data that exposure to minimum dose from an ordinary light source in the morning has a phase-advancing effect within one day.