1. Laboratory of Pharmacology; Department of Natural Active Principles and Toxicology; School of Pharmaceutical Sciences; São Paulo State University, UNESP; Araraquara SP Brazil
2. Department of Health and Human Services; Behavioral Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, US National Institutes of Health; Baltimore Maryland
3. Joint UFSCar-UNESP Graduate Program in Physiological Sciences; São Carlos SP Brazil