Freud compares seeking the cause of hysteria to unearthing an ancient city in which some things are visible on the surface and some are hidden below. Following the technique of
Josef Breuer, Freud expects the cause of hysteria must be
traumatic experiences, memories of which continue to act on the mind. The experience must fit the response, for example, hysterical vomiting could be justifiably attributed to seeing a disgusting dead body, but not to a frightening railway accident. Discovering the correct traumatic memory is expected to "resolve" the hysteria Memories form chains, with more recent memories reminding the patient of earlier memories. The analyst must help the patient mentally traverse back into
unconscious portions of the memory chain. Persistent analysis will reveal the earliest memory in the chain, which is invariably one or more premature sexual experiences. Freud says he has observed this in all 18 cases of hysteria he has analyzed, 6 men and 12 women. Patients are visibly distressed when they uncover the childhood sexual encounter, which is evidence that the remembered events are real. The encounters are sometimes sexual assaults committed by adults, and sometimes sex between children. Freud thinks that sex between children is typically initiated by a boy who was previously "seduced" by an adult woman. Thus hysteria can be transmitted from person to person; when this happens in a family, it may account for the appearance that hysteria is
hereditary. Hysterical people appear to overreact to things only because we cannot see the real stimulus; for example, a girl touched innocently on the hand may become hysterical if she was touched similarly on the hand during a traumatic experience. Freud speculates that childhood sexual abuse may also play a role in other disorders, like paranoia or obsession. He closes by saying he knows he will be disbelieved by some, and asks his critics to note the strength of the Breuer procedure for questioning patients. ==Reactions==