ABSTRACT
When one considers human development, it is clear that no other period offers such intricate close relationships than infancy. Not only is there, at that time, an unparalleled closeness between infant and caretaker, but the numerous behaviors of the infant are themselves of such a fluid nature that it can be extremely difficult to distinguish, within these behaviors, which elements are related mostly to motricity, cognition, or affectivity. The close relationships are not only interpersonal: They are also intrapersonal.
