Willis Webster Grube (1897). A Compendium of practical medicine for the use of students and practitioners of medicine. Hadley Co. σελ. 455. Ανακτήθηκε στις 26 Ιανουαρίου 2007. "Erection has long been observed to follow injuries to the cerebellum and spinal cord. Out of eleven cases of cerebellar hemorrhage, erection of the penis was noted six times by Serres. Death by hanging is often accompanied by partial erection."
George M. Gould· Walter L. Pyle (1900). Anomalies and Curiosities of Medicine. W. B. Saunders. σελ. 683. Ανακτήθηκε στις 26 Ιανουαρίου 2007. "Priapism is sometimes seen as a curious symptom of lesion of the spinal cord. In such cases it is totally unconnected with any voluptuous sensation, and is only found accompanied by motor paralysis. It may occur spontaneously immediately after accident involving the cord, and is then probably due to undue excitement of the portion of the cord below the lesion, which is deprived of the regulating influence of the brain... Pressure on the cerebellum is supposed to account for cases of priapism observed in executions and suicides by hanging. There is an instance recorded of an Italian castrata who said he provoked sexual pleasure by partially hanging himself."