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.
Mean distance traveled scores (+SEM) of preweanling rats injected with cocaine (0, 10, 20, 30, or 40 mg/kg, ip) and placed in activity chambers on the pretreatment day (i.e., PD 19). The inset shows mean distance traveled collapsed across time blocks 1–6. *Significantly different from the saline group (p < .05).
