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.
This figure shows mean elevation scores (+ 1 SEM) for the first and last extinction sessions of Experiment 1. The figure also shows the last nicotine training session before extinction and the sucrose session following extinction. * denotes significant difference between sessions.
