282 MICHAEL JOSEPH EISLER
psychological type may be formulated^ The dissimulation of the paranoiac is probably a pathological derivative of reserved behav- iour.
I return once more to the prominent part played by anal erotism in this case, since its relation to the other component in- stincts is noteworthy on account of a particular circumstance. It appeared that the former could draw to some extent on their co- operation, and direct the libidinous complement which they could contribute. I will summarise then in a few sentences what has pre- viously been said. The oral instinct was traced down to a stage at which it became more comprehensible from a phylogenetic point of view. ' Observationism ' was entirely attached to the anal-erotic object, similarly exhibitionism, the presence of which was demon- strated by a memory of puberty, shame at carrying out defae- cation in the open. The olfactory component need hardly be mentioned, as its association in this connection is almost universal. Even urethral-erotism is closely related to its partner in excretory delights. Finally, we found that the expression of sadism was moulded on anal erotism, partly by inversion as masochism, partly by reaction-formation as pity. In consequence of its pre-eminence, the anal-erotic instinct irresistably permeated its fellows. The case is a model of penetration of individual instincts by a pre- dominant component instinct, which is present in every neurosis, and determines the configuration of infantile character. This dynamic process is moreover of importance in another connection, namely in relation to the narcissistic phase of libido development. Freud holds that at this stage all component instincts have al- ready achieved object-choice, but the object as yet coincides with the Ego.2 If now, as in the case of our patient, the anal- erotic component retains throughout its undue prominence, it may, even with an appropriate disposition only, which was here how- ever reinforced by the injury to the head, prevent the normal breaking through beyond narcissism. Such we have witnessed. It would seem that the whole process is not restricted in its applica- tion to this case, but is typical, since we interpolate a sadistic-
- A less definite variety belongs to urethral-erotism, and this is probably
expressed in less material form, a characteristic common to everything psychical that is rooted in this component instinct.
Die Disposition zur Zwangsneurose', SammlungkleinerSchriftenzurNeu- rosenlehre, 4. Folge, S. 118,
