Skip to main content
. Author manuscript; available in PMC: 2012 Jul 10.
Published in final edited form as: Exp Clin Psychopharmacol. 2011 Feb;19(1):1–10. doi: 10.1037/a0022432

Figure 1.

Figure 1

Comparison of the first and last methamphetamine dose-effect determination in six monkeys that were treated with i.m. methamphetamine as a pretreatment prior to the last determination on drug response rate (top panel), drug intake (middle panel) and response rate during the first food component (bottom panel). Saline was given as a pretreatment for the two dose-effect functions presented. There was an average of 40.7 ± 9.9 months (range 20 to 72) between their first and last methamphetamine dose-effect determination.