Persistence of orienting and attending behavior in infants as a function of stimulus-locus uncertainty.
D000339:Affect; D000375:Aging; D001143:Arousal; D001288:Attention; D005639:Frustration; D006801:Humans; D007223:Infant; D009042:Motivation; D009949:Orientation; D010988:Play and Playthings; D012054:Reinforcement, Psychology