French neuroscientists say babies at age 5 months have the ability to perceive objects in adult-like ways, even though they cannot tell us.
http://www.latimes.com/news/science/la-sci-baby-brains-consciousness-20130420,0,7449418.story
This 5-month-old boy helped scientists figure out when consciousness sets in. (Image courtesy of Sid Kouider/Science / April 19, 2013)