Distractibility, intensity of reaction, and non-nutritive sucking.
D001288:Attention; D002675:Child, Preschool; D004644:Emotions; D005247:Feeding Behavior; D005260:Female; D005386:Fingersucking; D006801:Humans; D007223:Infant; D008297:Male; D012737:Sex Factors; D013391:Sucking Behavior; D014078:Tooth Eruption