Eyes first! Eye processing develops before face processing in children

Faces and eyes are critical social stimuli which adults process with ease, but how this expertise develops is not yet understood. Neural changes assoc iated with face and eye processing were investigated developmentally using ERPs (N170), in 128 subjects (4-15 year olds and adults). Stimuli included upright faces to assess configural processing, eyes and inverted faces to a ssess feature-based processing. N170 was present in the youngest children w ith similar patterns of face sensitivity seen in adults. Development of N17 0 to upright faces continued until adulthood, suggesting slow maturation of configural processing. In contrast, N170 was shorter latency and much larg er to eyes than faces in children and was mature by ii years, suggesting th e early presence of an eye detector, with a rapid maturational course. Neur oReport 12:1671-1676 (C) 2001 Lippincott Williams & Wilkins.