The perverse craving causes delusions about, and hallucinations of, situations, objects and people which tend to gratify the craving. Still, Kempf says “The pressure of the perverse craving occurs despite the social honor and social future of the individual. Horrified, he is swept off his feet into a hell of hallucinated temptations and demons of distractions.” With regard to the physiological reactions of fear to painful contact stimuli, this authority states they are quite like the fear reactions to horrible, painful hallucinated stimuli. The mechanism of the terrifying dream, for instance, like the hallucination, is first an effective disturbance due to the repressed autonomic tensions becoming released by the relaxation of self-control (as in sleep). During sleep indigestible food will cause increased effort on the part of the stomach and intestines. This produces consciousness of unpleasant sensory images which may coalesce into a horrible perception, like black dots forming a picture. This horrible image, in turn, causes the fear reaction. “The next stage would be to compensate by awaking, by flight or counter-attack. _When the erotic, hallucination is felt to be an external reality, and no defense is found, panic ensues._” The panic may be more or less serious, lasting from a few hours to several months. The disturbances to the physical processes and the bodily economy as a whole, attending such dissociations of personality, may be very serious. All these ill results, under the given circumstances, are traceable to _fear_. The definite physiological effects of this uncontrolled emotion--fear--are increased blood-pressure and pulse-rate, increase of adrenin and thyroid secretions, increase of blood sugar and decrease of the digestive and assimilative properties of the stomach and intestines; also decrease of heterosexual potency, and pronounced increase of trial and error movements of the skeletal apparatus--hence, restlessness, irritability, insomnia, etc. On the other hand, the acute dissociation of the personality, in both sexes, may become chronic and run a protracted course, varying from several weeks to many years. Final recovery may ensue, or (1) the condition may become permanent without further deterioration, or (2) the condition may pursue a course of progressive deterioration depending upon the negative nature of the transference and adjustment to the erotic pressure. A frequent accompaniment is the development of a vigorous, persistent counter-attack of hatred, which becomes directed against the social conventions. Its animus is aimed particularly against those to whom social obligations bind the subject (as parents, mate, offspring, employer, etc.) because they are repressing influences. The climax of this is a loss of social adaptation.