Dr. Gianluca Baldassarre is a Researcher at the Institute of Cognitive Sciences and Technologies (ISTC) of the Italian National Research Council (CNR) where he is a member of the Laboratory of Computational Embodied Neuroscience; his research interests include computational embodied neuroscience, psychology, neuroscience, developmental robotics, artificial life, and machine learning. Dr. Marco Mirolli is a Researcher at the Institute of Cognitive Sciences and Technologies (ISTC) of the Italian National Research Council (CNR) where he is a member of the Laboratory of Computational Embodied Neuroscience Laboratory; his research interests lie in the study of behavior through computer simulations, in particular the evolution of communication and language, the role of language as a cognitive tool, the biological bases of motivations and emotions, and the role of intrinsic motivations in cumulative learning.