Joseph P. Huston is Professor of Physiological Psychology at the University of Dusseldorf, Germany. He obtained his PhD in Experimental Psychology at Tufts University, Boston. Was National Academy of Sciences - Czechoslovak Academy of Sciences exchange scientist at the Institute of Physiology in Prague, then at the Institute of Pharmacology, University of Zurich. He has published more than 400 books and scientific articles in areas of behavioral neurosciences with focus on brain mechanisms of addiction, memory and reward animal models of neuropsychiatric and degenerative diseases. He is chief editor of the journals Behavioural Brain Research (Elsevier) and Reviews in the Neurosciences (Degruyter) and the book series Handbook of Behavioral Neuroscience (Elsevier).; Marcos Nadal obtained his degree in Psychology at the University of the Balearic Islands, and his PhD in Humanities and Social Sciences (Human Cognition and Evolution Program) (2007). He has been employed at the Department of Psychology of the University of the Balearic Islands since 2004, and occupied a lecturing position from 2010 to 2012. Since then he has been Assistant Professor at the Department of Basic Psychological Research and Research Methods of the University of Vienna. Since their creation in 2001 he has been a member of the Laboratory of Human Systematics and the Human Evolution and Cognition research group. The main objective of that group was the advancement of our understanding of distinctively human cognitive traits. Marcos Nadal's main research has centered on the evolution, the neural correlates and function of cognitive and affective processes involved in aesthetic preference and art appreciation, as well as moral judgment and metaphoric language.; Francisco Mora is Doctor of Medicine (1972, University of Granada, Spain) and Doctor of Philosophy (Neuroscience) (1977, University of Oxford, UK). He is professor of Human Physiology at the Faculty of Medicine, University Complutense of Madrid, Spain and adjunct professor at the Department of Molecular Physiology and Biophysics, Carver College of Medicine, University of Iowa, USA. He has written numerous articles for scientific journals including Science and Nature and several books among them The hot brain, MIT Press (2000) Neurocultura, Alianza Editorial (2007); Luigi F. Agnati is Professor of Human Physiology at University of Modena, Italy. He currently holds degrees in Medicine, Pharmacy, and Statistics as well as post-graduate specializations in Electronic Calculus (CNUCE, Pisa, Italy), Clinical Neurology (University of Bologna, Italy) and an honoris causa degree from the Karolinska Institutet, Sweden. Luigi F. Agnati has published more than 620 papers in refereed international journals and seven textbooks. He has been a member of the Italian Society of Physiology, Italian Society of Pharmacology, Italian Society of Endocrinology, Italian Society of Neuroscience, Italian Association for the study of pain, European Society of Neuroscience, and European Society of Neuroendocrinology.; Camilo Cela-Conde is professor of Anthropology at the University of Balearic Islands, Spain. He received his PhD in philosophy from the Barcelona University, Spain. He has been visiting professor at the University of California, Davis, USA, Universidad Autonoma Metropolitana, Iztapalapa, Mexico, Amazonica University, Belem, Brazil, and Universidad de Bogota, Colombia. He is Fellow of the American Association for the Advancement of Science (AAAS), Section of Biology, USA, Elected in November, 1999, and member of the Center for Academic Research and Teaching in Anthropogeny, Salk Institute and University of California, San Diego, USA, elected in March, 2008. His publications include On Genes, Gods and Tyrants, Springer, Dordrecht, The Netherlands (1989), and Human Evolution. Trails from the Past, New York, Oxford University Press (2007). He is director of the Laboratory of Human Systematics, University of the Balearic Islands, Spain.