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.
Tonic firing properties. The magnitude and direction of standardized self-administration change in firing (A) was fairly normally distributed and shifted to the right (increase) for the post self-administration change (B). Correlations of self-administration change in firing are plotted against post self-administration change (C) and slow phasic change in firing (D).
