interest, or if this coincides with the so-called objective interest in general. We can hardly agree that the normal "fonction du réel" [Janet] is only maintained through erotic interest. The fact is that, in many cases, reality vanishes altogether, and not a trace of psychological adaptation can be found in these cases. Reality is repressed, and replaced by phantasies created through complexes. We are forced to say that not only the erotic interests, but interests in general—that is, the whole adaptation to reality—are lost. I formerly tried, in my "Psychology of Dementia Præcox," to get out of this difficulty by using the expression "psychic energy," because I could not base the theory of dementia præcox on the theory of transference of the libido in its sexual definition. My experience—at that time chiefly psychiatric—did not permit me to understand this theory. Only later did I learn to understand the correctness of the theory as regards the neuroses by increased experience in hysteria and the compulsion neurosis. As a matter of fact, an abnormal displacement of libido, quite definitely sexual, does play a great part in the neuroses. But although very characteristic repressions of sexual libido do take place in certain neuroses, that loss of reality, so typical for dementia præcox, never occurs. In dementia præcox, so extreme is the loss of the function of reality that this loss must also entail a loss of motive power, to which any sexual nature must be absolutely denied, for it will not seem to anyone that reality is a sexual function. If this were so, the withdrawal of erotic interests in the neuroses would lead to a loss of reality—a loss of reality indeed that could be compared with that in dementia præcox. But, as I said before, this is not the case. These facts have made it impossible for me to transfer Freud's libido theory to dementia præcox. Hence, my view is, that the attempt made by Abraham, in his article "The Psycho-Sexual Differences Between Hysteria and Dementia Præcox," is from the standpoint of Freud's conception of libido theoretically untenable. Abraham's belief, that the paranoidal system, or the symptomatology of dementia præcox, arises by the libido withdrawing from the external world, cannot be justified if we take "libido" according to Freud's definition. For, as Freud has clearly shown, a mere introversion or regression of the libido leads always to a neurosis, and not to dementia præcox. It is
