Figure 2.
Average craving ratings (and standard errors of the mean) for the average of the two laboratory sessions divided by type (smoking, neutral) and mode (photos, imagery).
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.