Abstract
The problem of inferiority, of subjectivity, of conscience, is not only a metaphysical or psychological problem; it is susceptible to objective scientific study at the neurophysiological level. This study must not stop, however, at an analysis of cerebral function but must also recognize that conscience results from the self-being of the individual at himself in certain structures of his brain and that a cerebral process is or is not conscious according to whether or not it is integrated into the structure of the whole. This is best developed in man by virtue of the cerebral complexity which makes possible the verbalization of one self. The spiritual always appears as a functional, nonlocalizable aspect of the whole of the aggregate individual.