Figure 1.
Study Design Illustration of Within-Subject Crossover Pretreatments with Digram-Balanced Latin-Square (LS) Counterbalanced Sequences of Cocaine Dosing After 5 Days of Pretreatment Stabilization.
Topiramate (100 mg twice daily) and placebo were given as crossover pretreatments for 1 week each. After 5 days of stabilization, three intravenous (i.v.) doses of saline or cocaine (0.325 or 0.65 mg/kg) were administered over 3 days (Days 6–8) in an order completely counterbalanced across a group of 6 subjects. Day 9 was the day of delivery of a money-versus-cocaine choice from the Multiple Choice Questionnaire.