From many of the original accounts of European travelers, latah does not seem to have changed much in either affected demographic population nor in symptoms.The British colonial administrator Frank Swettenham wrote about latah in his volume of essays Malay Sketches (1895). Swettenham describes how two policemen from Ambon Island stationed in Selangor in 1874 who were affected with the condition were made the victims of pranks by their colleagues. Signs and symptoms
Latah can affect people differently; someone can have a very strong reaction or a slight reaction during a latah episode. Every instance of latah has been acquired over time. Those who are affected, which by an overwhelming number are middle-aged to older women, are not born latah. It typically occurs around the time of menopause. There is a lack of latah in the higher social strata of Malay and Java, which suggests they are more likely to suppress their responses than those who belong to lower social classes. A latah episode occurs after being startled (poking, shouting, something falling). During an episode, a latah person will begin to shout obscenities, imitate words or gestures of those around them or even those on TV, and will often obey any commands given to them – no matter how outrageous or against cultural norms they are. Persons with latah make movements reminiscent of behaviors normally peculiar to certain childhood developmental stages. The person is unlikely to remember anything occurring during the episode.
DSM-5 has taken out the "culture–bound syndrome" language and replaced it with more "sensitive" language, and the glossary where the now shortened list of previously recognized culture–bound syndromes is titled "Other Specified" and "Unspecified" dissociative disorders. A more general discussion, involving the formation of a cultural identity, explanation, and assessment, has been added. In popular culture
William S. Burroughs mentions latah several times in his 1959 novel Naked Lunch, "a parody of modern mass man under modern conditioning programmes of advertising and public[ly] induced morality", according to Eric Mottram. Burroughs described latah as involving echopraxia, as well as being forcibly induced rather than spontaneously occurring. Latah is also mentioned in Burroughs 1963 novel The Yage Letters. Possible causes
The onset of latah is often associated with stress. In a study done by Tanner and Chamberland in 2001, a significant number of research participants had experienced a life stressor (such as a child or husband dying) just before becoming latah. Additionally, a large number of participants from many research studies have reported strange dreams occurring just before the onset of latah. These dreams usually had a sexual element to them, often involving penises. According to Tanner and Chamberland, perhaps the dreams, although with variation, indicate some sort of dysfunction in a specific anatomical area. Exploring this further might lead to more insights as to the cause and/or cure of latah. : 526–529  Osborne (2001) states that latah is a possible emotional outlet in a stifling culture.