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.
The blue arrows show the preferred direction of movement. R and L means right and left side of the mouse determined based on the body-centered coordinates. The right side of the arena is determined based on the room coordinates. The brown rectangle depicts a vertical wooden post that constituted a landmark together with two walls adjoining the tank.
