|
Foreign accent syndrome is a rare medical condition in which patients develop what appears to be a foreign accent.〔Kurowski KM, Blumstein SE, Alexander M. (1996). "(The foreign accent syndrome: a reconsideration, )" Brain Lang., 54(1), 1–25.〕 Foreign accent syndrome usually results from a stroke,〔 but can also develop from head trauma,〔 migraines〔(【引用サイトリンク】title=Severe migraines give Devon woman a bizarre Chinese accent at )〕 or developmental problems. The condition was first reported in 1907,〔Marie P. (1907). Presentation de malades atteints d’anarthrie par lesion de l’hemisphere gauche du cerveau. Bulletins et Memoires Societe Medicale des Hopitaux de Paris, 1: 158–160.〕 and between 1941 and 2009 there were sixty-two recorded cases.〔 Its symptoms result from distorted articulatory planning and coordination processes and although popular news articles commonly attempt to identify the closest regional accent, speakers suffering from foreign accent syndrome acquire neither a specific foreign accent nor any additional fluency in a foreign language. Despite an unconfirmed news report in 2010 that a Croatian speaker has gained the ability to speak fluent German after emergence from a coma, there has been no verified case where a patient's foreign language skills have improved after a brain injury. There have been a few reported cases of children and siblings picking up the new accent from someone with foreign accent syndrome.〔(【引用サイトリンク】title=Foreign Accent Syndrome: What Is It? And Most Notable Cases )〕 == Signs and symptoms == To the untrained ear, those with the syndrome sound as though they speak their native languages with a foreign accent; for example, an American native speaker of English might sound as though he spoke with a south-eastern English accent, or a native English speaker might speak with a New York American accent. However, researchers at Oxford University have found that certain, specific parts of the brain were injured in some foreign accent syndrome cases, indicating that certain parts of the brain control various linguistic functions, and damage could result in altered pitch or mispronounced syllables, causing speech patterns to be distorted in a non-specific manner. Contrary to popular beliefs that individuals with FAS exhibit their accent without any effort, these individuals feel as if they are suffering from a speech disorder. More recently, there is mounting evidence that the cerebellum, which controls motor function, may be crucially involved in some cases of foreign accent syndrome, reinforcing the notion that speech pattern alteration is mechanical, and thus non-specific.〔Mariën P., Verhoeven J., Engelborghs, S., Rooker, S., Pickut, B. A., De Deyn, P.P. (2006). A role for the cerebellum in motor speech planning: evidence from foreign accent syndrome. Clinical Neurology and Neurosurgery, 108, 518-522.〕〔Mariën P., Verhoeven J. (2007). Cerebellar involvement in motor speech planning: some further evidence from foreign accent syndrome. Folia Phoniatrica et Logopaedica, 59:4, 210-217.〕 The perception of a foreign accent is likely to be a case of pareidolia on the part of the listener. Nick Miller, Professor of Motor Speech Disorders at Newcastle University has explained: "The notion that sufferers speak in a foreign language is something that is in the ear of the listener, rather than the mouth of the speaker. It is simply that the rhythm and pronunciation of speech has changed." 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Foreign accent syndrome」の詳細全文を読む スポンサード リンク
|