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.
Panel A depicts Venham's Picture test with eight illustrated sequences of a character expressing different emotions and performing various actions. Panel B shows a pulse oximeter, a VR headset, and a computer displaying SpongeBob cartoon show
VR: virtual reality
