Visual tracking and existence constancy in 5-month-old infants.
D000367:Age Factors; D001288:Attention; D004192:Discrimination, Psychological; D005260:Female; D005403:Fixation, Ocular; D006339:Heart Rate; D006801:Humans; D007223:Infant; D008297:Male; D008568:Memory; D009039:Motion Perception; D014796:Visual Perception