Sonia Maria Ramos de Vasconcelos1, Miguel Roig2. 1. Science Education Program, Institute of Medical Biochemistry Leopoldo de Meis (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil. svasconcelos@bioqmed.ufrj.br. 2. Department of Psychology, St. John's University, Staten Island, NY, USA.