The first known case of an individual with conduct that would today be considered multiple personality disorder was recorded in the late 18th century (Hacking, 1995). In 1972, there were ten known cases over the previous fifty years despite a widespread interest in
psychotherapy over that period. By 1986, it was believed that six thousand cases had been diagnosed. As cases of multiple personality began to emerge in the 1970s, they attracted the interest not only of therapists and the
psychiatric profession, but also of the
media. Awareness and discussion of multiple personality disorder became widespread. multiple personality disorder became a kind of
mental illness. It became a kind of thing that someone could have. This is what Hacking refers to as “semantic contagion” (p. 238). Before its meaning became prevalent in society, one could not describe oneself as a person of that kind. There were confused individuals who were (either deliberately or pre-reflectively) seeking to dissociate themselves from memories of painful events. These people, however, could not have described themselves as having the Disorder, nor could people in
psychology diagnose their patients with this term. Once MPD became a kind of thing, it became a way for individuals to understand themselves and understand people around them. Other meanings associated with MPD arose contemporaneously in the 1970s and 1980s.
Child abuse was not a meaning shared and understood in Western societies before the 1970s. “
Cruelty to children” and “baby battering” were perhaps the precursors of this term, although the meaning implied by these terms was mostly restricted to physical
violence. With “child abuse,” the sexual use of children was not only incorporated into our understanding of the ill treatment of children, but became the most probable form. It needs to be stressed that Hacking (1995) does not suggest child abuse only began to occur when the term had been coined. Nevertheless, it may have increased the prevalence of child abuse. Some men may discover child
rape for themselves, some may have learned it from their own childhood experiences and some (perhaps many) may sexually abuse children because the idea of such conduct was imbued through semantic contagion. Hacking is also careful to note that the use of children for sexual purposes is a cause of suffering to children whether or not the term “child abuse” is in common usage. One can imagine, for example, that an eleven-year-old boy in
ancient Greece coerced into sex by his mentor would suffer pain and mental anguish.
Genital mutilation is also painful and most possibly quite horrifying to those who have this practice inflicted on them. The key aspect of
semantic contagion is not that it makes events and behaviors possible that were once impossible. Semantic contagion, by creating new ways of being a person and new descriptions for the way people act, contributes to our explanations as to why the act occurred and what the consequences will be. It seems that the description of the act can shape the consequences of the act. == Acting under a description ==