title: Preconceptive ambivalence and external reality.
mesh_terms: D000328:Adult; D001290:Attitude; D001293:Attitude to Death; D002648:Child; D003220:Conflict, Psychological; D004532:Ego; D005260:Female; D006803:Human Development; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008960:Models, Psychological; D009813:Oedipus Complex; D010287:Parent-Child Relations; D010290:Parents / Q000523:psychology; D011247:Pregnancy; D011572:Psychoanalysis; D011936:Reality Testing