Fig. 3.
Average valence and arousal ratings of faces. Valence = 0 (extremely unpleasant) to + 8 (extremely pleasant); arousal = 0 (not at all aroused) to + 8 (extremely aroused).
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.