1. The symptom-complex under discussion cannot be regarded as a disease entity.2. It develops most often in the adolescent or young criminal.3. While it may complicate other psychoses it very often occurs simply upon a markedly defective basis, which in some cases amounts to imbecility.4. It is not infrequently associated with evidences of an attempt at simulation.5. While related to hysteria in nature it can hardly be regarded as a hysterical psychosis, though of psychogenic origin.6. Great apprehensiveness with partial stupor, hallucinations of sight and hearing, and often mutism are frequently the most prominent symptoms. Their rapid disappearance upon transfer to a hospital for insane is usual and striking.