Figure 1.
Schematic representation of the experimental design. The protocol lasted from 12:00 am to 04:00 pm and comprised of an hour of habituation, followed by the placebo or melatonin intervention and subsequent dim or bright light exposure
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.