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.
Baseline (1st frame), playing (2nd frame), mishap (3rd frame), experimenter's entrance (4th frame) and the soothing phase (5th frame). Colour change from lighter to darker shades signify the temperature drop.
