Carey, S, and R Diamond. 1977. “From Piecemeal to Configurational Representation of Faces.” Science 195 (4275) (January 21): 312–314. doi:10.1126/science.831281. http://dx.doi.org/10.1126/science.831281.
Unlike older children and adults, children of less than about 10 years of age remember photographs of faces presented upside down almost as well as those shown upright and are easily fooled by simple disguises. The development at age 10 of the ability to encode orientation-specific configurational aspects of a face may reflect completion of certain maturational changes in the right cerebral hemisphere.