Andrés M. Pérez-Acosta is psychologist (with Honor Degree, 1996) from the National University of Colombia, and PhD (with Thesis Summa Cum Laude, 2001) by the University of Seville (Spain) under the direction of Santiago Benjumea Rodríguez and José I. Navarro Guzmán. He earned doctorate degree thanks to the Mutis Scholarship of the Spanish Agency for International Cooperation. He completed two postdoctoral fellowships in the United States (with Mauricio R. Papini, Texas Christian University, 2007) and Chile (with Edgar H. Vogel, Universidad de Talca, 2008). He is currently Professor (Full) of Psychology in the School of Medicine and Health Sciences of University of the Rosario (Bogota, Colombia). His research program is the basic and applied psychology of associative learning, within which is developing the Observatory of Self-Medication Behavior. Visiting Professor at the University of Sao Paulo, Brazil (2015; host: José Lino Oliveira Bueno).