Fady S. Alnajjar is a research scientist at the Intelligent Behavior Control Unit, BSI, RIKEN. He received an M.S. degree from the Department of Human and Artificial Intelligence System at the University Of Fukui, Japan (2007), and a Dr. Eng. degree in System Design Engineering from the same university in 2010. Over the past 3 years, he was interested in brain modeling in aim to understand higher-order cognitive mechanisms. Recently, he started to study motor learning and adaptation from the sensory and muscle synergies perspective in order to suggest practical applications for neural-rehabilitations.