Developmental phases in visual recognition of the human face pattern, exemplified by the 'smiling response'.
D000367:Age Factors; D002657:Child Development; D004192:Discrimination, Psychological; D005145:Face; D005149:Facial Expression; D005260:Female; D005556:Form Perception; D006801:Humans; D007223:Infant; D008297:Male; D010364:Pattern Recognition, Visual; D011930:Reaction Time; D013028:Space Perception