Our colleague Alvaro Castro González presented in December 4th, 2012 his PhD Thesis. Its title is Bio-inspired Decision Making System for an Autonomous Social Robot. The role of fear. The directors of the thesis were Miguel Ángel Salichs and María Malfaz. The examing board was formed by Antoni Gomila Benejam, João Fernando Cardoso Silva Sequeira and Carlos Balaguer. He received the highest rating possible.