Modification of the externality effect in young infants.
D001288:Attention; D004193:Discrimination Learning; D005260:Female; D005403:Fixation, Ocular; D005556:Form Perception; D006185:Habituation, Psychophysiologic; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D013028:Space Perception