Responses to "frustration" in one-year-old infants.
D000223:Adaptation, Psychological; D000339:Affect; D000367:Age Factors; D001288:Attention; D002652:Child Behavior; D002657:Child Development; D005260:Female; D005639:Frustration; D006801:Humans; D007223:Infant; D008297:Male; D008722:Methods; D010298:Parity; D011581:Psychological Tests; D012737:Sex Factors