Postoperative foreign language syndrome

Foreign language syndrome (FLS), a substitution of native language (first language, L1) with person's later learned language (second language, L2) may rarely occur after serious injury to the brain which renders victims unconscious. There have been few reported cases of the FLS since it was first reported in the 1940s. The most famous case was a Norwegian woman, hit by shrapnel (World War II), who subsequently developed a German accent. Other cases include two British woman, one developed a Chinese accent following a migraine, and another had a stroke and gained a French accent (Foreign accent syndrome).(http://ift.tt/1QrW1FS).

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