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.
Participants should judge which of the given colors on the screen can best match the odor they smell, by clicking the corresponding color square directly when they decide to choose. Participants responded with the mouse.
