But just as in the organism the renewed functions are never the exact equivalent of the damaged ones, and give only an appearance of total restitution, the intelligence ensures no more than an apparent communication between different experiences, and the synthesis of visual and tactile worlds in the person born blind and operated upon, the constitution of an intersensory world must be effected in thedomain of sense itself, the community of significance between the two experiences being inadequate to ensure their union in one single experience.