From NYT magazine: The Americanization of Mental Illness by Ethan Watters
“Western mental-health practitioners often prefer to believe that the 844 pages of the DSM-IV prior to the inclusion of culture-bound syndromes describe real disorders of the mind, illnesses with symptomatology and outcomes relatively unaffected by shifting cultural beliefs. And, it logically follows, if these disorders are unaffected by culture, then they are surely universal to humans everywhere. In this view, the DSM is a field guide to the world’s psyche, and applying it around the world represents simply the brave march of scientific knowledge.
Of course, we can become psychologically unhinged for many reasons that are common to all, like personal traumas, social upheavals or biochemical imbalances in our brains. Modern science has begun to reveal these causes. Whatever the trigger, however, the ill individual and those around him invariably rely on cultural beliefs and stories to understand what is happening. Those stories, whether they tell of spirit possession, semen loss or serotonin depletion, predict and shape the course of the illness in dramatic and often counterintuitive ways. In the end, what cross-cultural psychiatrists and anthropologists have to tell us is that all mental illnesses, including depression, P.T.S.D. and even schizophrenia, can be every bit as influenced by cultural beliefs and expectations today as hysterical-leg paralysis or the vapors or zar or any other mental illness ever experienced in the history of human madness. This does not mean that these illnesses and the pain associated with them are not real, or that sufferers deliberately shape their symptoms to fit a certain cultural niche. It means that a mental illness is an illness of the mind and cannot be understood without understanding the ideas, habits and predispositions — the idiosyncratic cultural trappings — of the mind that is its host.”