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.
Four examples of visual stimuli used for experiment 2 are shown. Each background was downloaded from the internet and a neutral, lipsmack, fear grimace, or open-mouth threat facial expression was added at a pseudorandom spatial location (balanced across all stimuli) using Adobe Photoshop software.
