Les Obsessions, vol. ii, p. 136.
A somewhat similar classification has already been made by Max Dessoir, who points out that we must distinguish between onanists aus Noth, and onanists aus Leidenschaft, the latter group alone being of really serious importance. The classification of Dallemagne is also somewhat similar; he distinguishes onanie par impulsion, occurring in mental degeneration and in persons of inferior intelligence, from onanie par evocation ou obsession.
W. Xavier Sudduth, "A Study in the Psycho-physics of Masturbation," Chicago Medical Recorder, March, 1898. Haig, who reaches a similar conclusion, has sought to find its precise mechanism in the blood-pressure. "As the sexual act produces lower and falling blood-pressure," he remarks, "it will of necessity relieve conditions which are due to high and rising blood-pressure, such, for instance, as mental depression and bad temper; and, unless my observation deceives me, we have here a connection between conditions of high blood-pressure with mental and bodily depression and acts of masturbation, for this act will relieve these conditions and tend to be practiced for this purpose." (Uric Acid, 6th edition, p. 154.)