The pleadings of scientists come to confirm the close relationship between the child and his parents, the way in which each participant in this relationship transforms, develops their abilities, skills, attitudes and defines their roles. The child's first relationships are with his mother or the person who meets his basic needs. His behavior is conditioned by the behavior, the relationship style of the adult who cares for him. Therefore, interpersonal exchanges take place, the quality of the relationship depending largely on the sensitivity of the adult, the interactions initiated by the child or professional parent, the child's behavior, the response to stimuli.