There is a close relationship between the development of walking and that of vision. We have shown that, from birth, newborns are able to adapt the rhythm of their pace to the scanning of their visual environment. Conversely, the advent of autonomous walking, a few months later, changes the way the child perceives his or her visual environment. How do these studies implicate children’s visual and motor development? Should we stimulate walking as soon as possible? How can we improve children’s visual perception of their own movement? This is what we explore at the "Babylab" of Maternité Port-Royal in Paris and the Infant Studies Center in the USA.