us. In
hysteria these parts of the body, as well as the tracts of mucous
membrane proceeding from them, become the seat of new sensations and
innervating changes in a manner similar to the real genitals when under
the excitement of normal sexual processes.

The significance of the erogenous zones in the psychoneuroses, as
additional apparatus and substitutes for the genitals, appears to be
most prominent in hysteria though that does not signify that it is of
lesser validity in the other morbid forms. It is not so recognizable in
compulsion neurosis and paranoia because here the symptom formation
takes place in regions of the psychic apparatus which lie at a great
distance from the central locations for bodily control. The more
remarkable thing in the compulsion neurosis is the significance of the
impulses which create new sexual aims and appear independently of the
erogenous zones. Nevertheless, the eye corresponds to an erogenous zone
in the looking and exhibition mania, while the skin takes on the same
part in the pain and cruelty components of the sexual impulse. The skin,
which in special parts of the body becomes differentiated as sensory
organs and modified by the mucous membrane, is the erogenous zone,
[Greek: kat] ex ogen.[28]

EXPLANATION OF THE MANIFEST PREPONDERANCE OF SEXUAL PERVERSIONS IN THE
PSYCHONEUROSES

The sexuality of psychoneurotics has perhaps been placed in a false
light by the above discussions. It appears that the sexual behavior of
the psychoneurotic approaches in predisposition to the pervert and
deviates by just so much from the normal. Nevertheless, it is very
possible that the constitutional disposition of these patients besides
containing an immense amount of sexual repression and a predominant
force of sexual impulse also possesses an unusual tendency to
perversions in the broadest sense. However, an examination of milder
cases shows that the last assumption is not an absolute requisite, or at
least that in pronouncing judgment on the morbid effects one ought to
discount the effect of one of the factors. In most psychoneurotics the
disease first appears after puberty following the demands of the normal
sexual life. Against these the repression above all directs itself. Or
the disease comes on later, owing to the fact that the libido is unable
to attain normal sexual gratification. In both cases the libido behaves
like a stream the principal bed of which is dammed; it fills the
colla