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 design before (top drawing) and during MRI (bottom drawing). Each of the four runs consisted of four blocks of the same stimulus (CPT or control). The order of runs with CPT (stress) or blanket (control) was randomized across subjects.
