Note 52 — Chapter III
Reading edition
Edmund Parish, Hallucinations and Illusions: A Study of the Fallacies of Perception (Contemporary Science Series), 1897. It is significant to observe that in hysteria, which may be regarded as presenting a condition somewhat analogous to sleep, dissociation also occurs. 'Hysteria,' says Janet (The Major Symptoms of Hysteria, 1907, p. 332), one of the greatest authorities, 'is a form of mental depression characterised by the retraction of the field of personal consciousness and a tendency to the dissociation and emancipation of the system of ideas and functions that constitute personality.'