title: Differential sex learning in early childhood.
mesh_terms: D000374:Aggression; D001007:Anxiety; D002652:Child Behavior; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D004522:Educational Status; D005239:Fear; D005260:Female; D005403:Fixation, Ocular; D005639:Frustration; D006801:Humans; D007223:Infant; D007398:Interpersonal Relations; D007858:Learning; D008297:Male; D009048:Motor Skills; D010287:Parent-Child Relations; D012054:Reinforcement, Psychology; D012380:Role; D012660:Semantics; D012723:Sex; D012737:Sex Factors; D012951:Socialization; D012959:Socioeconomic Factors; D013028:Space Perception; D014831:Voice