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.
Subjective sleepiness estimates before presentation and recognition sessions of the FNT in the morning and evening. Each bar shows the mean (± SD) subjective sleepiness rating from the Karolinska Sleepiness Scale taken before morning (black) and evening (grey) presentation and recognition sessions of the FNT.
