[SPONTANEOUS AUDIBILITY OF THE MATERNAL VOICE; CONDITIONED AUDIBILITY OF EVERY OTHER VOICE].
D002648:Child; D003214:Conditioning, Classical; D006309:Hearing; D006320:Hearing Tests; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007323:Instinct; D002666:Psychology, Child; D012018:Reflex
CHILD PSYCHOLOGY; HEARING; INFANT; INFANT, NEWBORN; INSTINCT; REFLEX, CONDITIONED
AUDIBILIT'E SPONTAN'EE DE LA VOIX MATERNELLE; AUDIBILIT'E CONDITIONN'EE DE TOUTE AUTRE VOIX.