supported by grants from the National Basic Research Program of China(No.2011CB711000);the National Key Technology R&D Program of China(No.2012BAI36B00);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB02010003);the National Natural Science Foundation of China(No.31070903 and No.31200767);the Scientific Foundation of the Institute of Psychology,Chinese Academy of Sciences(No.Y1CX302005)
Walking is arguably the most frequent movement in bipeds(e.g.,humans)and quadrupeds.Walking direction conveys the disposition and intention of a biological entity,to which humans are highly sensitive since birth.Aside...