title: Infants' discrimination of internal and external pattern elements.
mesh_terms: D000367:Age Factors; D001288:Attention; D002657:Child Development; D003216:Conditioning, Operant; D004193:Discrimination Learning; D005556:Form Perception; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007257:Information Theory; D010364:Pattern Recognition, Visual; D012054:Reinforcement, Psychology; D012858:Size Perception; D013391:Sucking Behavior