Figure 4
From: The ascending limb of the cocaine unit dose–response function in rats as an experimental artifact
The ascending limb is dependent on the inclusion of data from sessions in which rats failed to self-administer all allowed injections. Data points represent Mean ± SEM number of injections on FR50 schedule in 45 min from 15 sessions from 5 rats at each unit dose. The number of sessions where rats self-administered all allowed injections on FR50 schedule is shown in Table 1.
