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.
Percent larger reinforcer choice as a function of block in session (corresponding to the increasing delay to the larger reinforcer across successive blocks) across all doses of acute NIC during experiment 1 for LEW (left panel) and F344 (right panel) rats. Note that data for each rat strain are collapsed across delay series. Error bars represent standard error of the mean. Asterisks represent a statistically significant difference from SAL (p < 0.05)
