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.
Study 2: timeline of an extinction phase trial. The CS is displayed in the cabinet as a virtual object (photo camera or remote control). As soon as the participant grabs the CS, a black screen is displayed for 15 s. Subsequently US− is displayed.
