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Action spectrum for melatonin suppression measured with monochromatic light in healthy adults

Thapan K, Arendt J, Skene DJ (2001) · The Journal of Physiology

Thirty-minute monochromatic exposures at six wavelengths produced maximal melatonin suppression in the short-wavelength region near 460 nm, which the authors reported as evidence for a non-rod, non-cone photoreceptor system in humans.

What they studied

22 healthy adults, 215 light exposure trials

What they found

Thirty-minute monochromatic exposures at six wavelengths produced maximal melatonin suppression in the short-wavelength region near 460 nm, which the authors reported as evidence for a non-rod, non-cone photoreceptor system in humans.

What it does not establish

This entry reports the study. It is not a statement about any building Sage Co. designs or constructs.

Source

  • Thapan K, Arendt J, Skene DJ (2001). Action spectrum for melatonin suppression measured with monochromatic light in healthy adults · The Journal of Physiology · Read at the source

Last reviewed September 23, 2026.