The feeling of satiety is hardly
experienced at all, or only for a short time after each orgasm.
Nymphomaniacs and satyrs are possessed by an insatiable sexual desire,
often associated with certain sensations of anguish. This
hyperaesthesia, even when it is not hereditary, may be developed up to
a certain point by continued or repeated artificial excitations.

In women it is during or after menstruation that the sexual appetite
and consequently sexual hyperaesthesia are generally strongest, but
there are many individual variations in this respect, and sometimes
the opposite occurs.

The effect of sexual hyperaesthesia is to direct the appetite toward
any object capable of satisfying it. When the other sex is wanting,
masturbation is generally resorted to. All mucous membranes (anus,
mouth, etc.) and even inanimate objects may serve to satisfy the
pathologically exalted appetite of such individuals. Men most
distinguished in other respects may abandon themselves to the most
foolish or abominable practices.

_Animals are often used to satisfy the hyperaesthetic sexual appetite
in both sexes. The healthy woman is not prone to such desires, unless
of psychopathic taint. Men visit prostitutes, and become excited at
the sight of every woman who is neither too old nor too repulsive.
Some individuals of this kind are pursued night and day by erotic
images, which may even become an obsession and a veritable torment._

A further degree of sexual hyperaesthesia is called _Satyriasis_ in
man, and _nymphomania_ in woman. I have observed in women two very
different varieties of sexual hyperaesthesia. In one, true nymphomania,
the subjects are attracted toward man bodily and mentally with an
elementary force; in these the whole brain follows the appetite in
quite a feminine manner. Other women, on the contrary, are driven to
masturbation by a purely peripheral excitation; they have erotic
dreams with venereal orgasms which torment rather than please them;
but they do not fall in love easily, and may have difficulty in the
choice of a husband. Their mind alone remains feminine, full of tact
and delicacy in its sentiments, while their lower nerve centers react
in a more masculine and at the same time more pathological manner.
There are many transitional forms between these two extremes.

Sexual hyperaesthetics are often unhappy, and consult the physician for
relief from the perpetual excitation which torments them. They attempt
t