a movement of flight) until the perception has
again disappeared. But there will here remain no tendency again to
occupy the perception of the source of pain in the form of an
hallucination or in any other form. On the contrary, there will be a
tendency in the primary apparatus to abandon the painful memory picture
as soon as it is in any way awakened, as the overflow of its excitement
would surely produce (more precisely, begin to produce) pain. The
deviation from memory, which is but a repetition of the former flight
from perception, is facilitated also by the fact that, unlike
perception, memory does not possess sufficient quality to excite
consciousness and thereby to attract to itself new energy. This easy and
regularly occurring deviation of the psychic process from the former
painful memory presents to us the model and the first example of
_psychic repression_. As is generally known, much of this deviation from
the painful, much of the behavior of the ostrich, can be readily
demonstrated even in the normal psychic life of adults.
By virtue of the principle of pain the first system is therefore
altogether incapable of introducing anything unpleasant into the mental
associations. The system cannot do anything but wish. If this remained
so the mental activity of the second system, which should have at its
disposal all the memories stored up by experiences, would be hindered.
But two ways are now opened: the work of the second system either frees
itself completely from the principle of pain and continues its course,
paying no heed to the painful reminiscence, or it contrives to occupy
the painful memory in such a manner as to preclude the liberation of
pain. We may reject the first possibility, as the principle of pain also
manifests itself as a regulator for the emotional discharge of the
second system; we are, therefore, directed to the second possibility,
namely, that this system occupies a reminiscence in such a manner as to
inhibit its discharge and hence, also, to inhibit the discharge
comparable to a motor innervation for the development of pain. Thus from
two starting points we are led to the hypothesis that occupation through
the second system is at the same time an inhibition for the emotional
discharge, viz. from a consideration of the principle of pain and from
the principle of the smallest expenditure of innervation. Let us,
however, keep to the fact--this is the key to the theory of
repression--that t
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