{"id":3042,"date":"2015-03-08T21:12:51","date_gmt":"2015-03-08T21:12:51","guid":{"rendered":"http:\/\/www.lifeandnews.com\/articles\/?p=3042"},"modified":"2016-08-10T16:08:16","modified_gmt":"2016-08-10T16:08:16","slug":"if-you-speak-mandarin-your-brain-is-different","status":"publish","type":"post","link":"https:\/\/www.lifeandnews.com\/articles\/if-you-speak-mandarin-your-brain-is-different\/","title":{"rendered":"If you speak Mandarin, your brain is different"},"content":{"rendered":"

By Larry Taylor<\/a>, Northumbria University, Newcastle<\/a><\/em><\/p>\n

We speak so effortlessly that most of us never think about it. But psychologists and neuroscientists are captivated by the human capacity to communicate with language. By the time a child can tie his or her shoes, enough words and rules have been mastered to allow the expression of an unlimited number of utterances. The uniqueness of this behaviour to the human species indicates its centrality to human psychology.<\/p>\n

That this behaviour comes naturally and seemingly effortlessly in the first few years of life merely fascinates us further. Untangling the brain\u2019s mechanisms for language has been a pillar of neuroscience since its inception. New research<\/a> published in the Proceedings for the National Academy of Sciences about the different connections going on in the brains of Mandarin and English speakers, demonstrates just how flexible our ability to learn language really is.<\/p>\n

Real-time brain networking<\/h2>\n

Before functional brain imaging was possible, two areas on the left side of the brain, called Broca\u2019s area and Wernicke\u2019s area, had already revealed their importance for language. Victims of stroke or traumatic brain injury<\/a> to either of these crucial areas on the left side of the brain exhibited profound disabilities for producing and understanding language. Modern theories on connectionism<\/a> \u2013 the idea that knowledge is distributed across different parts of the brain and not tucked into dedicated modules like Broca\u2019s area \u2013 have compelled researchers to take a closer look.<\/p>\n

For example, language requires real-time mappings between words and their meanings. This requires that<\/a> the sounds heard in speech \u2013 decoded in the auditory cortex \u2013 must be integrated with knowledge about what they mean \u2013 in the frontal cortex. Modern theories in neuroscience are enamoured with this type of \u201cnetwork\u201d approach. Instead of pinning miracles of cognition to singular brain areas, complex processes are now viewed as distributed across different cortical areas, relying on several parts of the brain interacting dynamically.<\/p>\n

Comparing tongues<\/h2>\n

By six to ten months<\/a> children have already learned to be sensitive to the basic sounds, known as phonemes, that matter in their native language. Yet different languages differ profoundly in the sounds that are important for communication.<\/p>\n

Mandarin Chinese is a tonal language in which the same basic sounds can refer to vastly different things based on the tone with which it is spoken. In a non-tonal language such as English, tone might convey emotional information about the speaker, but indicates nothing about the meaning of the word that is spoken.<\/p>\n

Now a group of Chinese researchers, led by Jianqiao Ge
\nat Peking University, Beijing, has found that these differences between Mandarin Chinese and English change the way the brain\u2019s networks work.<\/p>\n

The researchers took advantage of the basic differences between Mandarin Chinese and English to investigate the differences between the language networks of native speakers of tonal and non-tonal languages. Thirty native Chinese speakers were matched on age, gender, and handedness (they were all right-handed) with a sample of native English speakers. All participants listened to intelligible and unintelligible speech and were asked to judge the gender of the speaker.<\/p>\n

The right side<\/h2>\n

Both groups of speakers showed activation of the brain\u2019s classic go-to areas for speech \u2013 including Broca\u2019s and Wernicke\u2019s areas \u2013 on the left side of the brain. But two important differences emerged. The first difference was the operation of the brain networks shared by English and Chinese speakers. English speakers showed stronger connectivity leading from Wernicke\u2019s area to Broca\u2019s area. This increased connectivity was attributed to English relying more heavily on phonological information, or sounds rather than tones.<\/p>\n

\"\"<\/a>
Two areas on the left hand side of the brain associated with language.<\/span>
\nOpenStax College\/Wikimedia<\/a>, CC BY<\/a><\/span><\/figcaption><\/figure>\n

Meanwhile, Chinese speakers had stronger connections leading from an area of the brain called the anterior superior temporal gyrus \u2013 which has been identified<\/a> as a \u201csemantic hub\u201d critical in supporting language \u2013 to both Broca\u2019s and Wernicke\u2019s area. This increased connectivity is attributed to the enhanced mapping of sound and meaning going on in people who speak tonal languages.<\/p>\n

The second difference showed activation in an area of the brain\u2019s right hemisphere, but only among the Chinese speakers. This brain area, the right superior temporal pole, has been implicated<\/a> in Chinese tones before but \u2013 perhaps more importantly \u2013 has until now been considered completely separate from the classic language network in the left hemisphere.<\/p>\n

The findings emphasise the importance of developing a bilateral network between the two brain hemispheres to speak and understand languages, particularly for tonal languages like Mandarin Chinese.<\/p>\n

New avenues for research<\/h2>\n

We can expect more such differences to emerge as future research focuses increasingly on non-English speaking participants. Much of what we think we know about human psychology is based on \u201cWEIRD\u201d participants<\/a>: western, educated university students from industrialised, rich, and developed nations. Other cross-linguistic, cross-cultural, or cross-class differences might emerge as more research develops.<\/p>\n

Provocative though the results might be, they raise questions for future research. Tone matters in English, just not to the same extent as in Chinese. For example, think of how your delivery might change the meaning of the question \u201cWhere have you been?\u201d to convey suspicion, surprise, curiosity, or jealousy. Language might be among our most important windows to human thought, but research has barely scratched the surface of this complex and curiously unique human ability.<\/p>\n

\"The<\/p>\n

This article was originally published on The Conversation<\/a>.
\nRead the original article<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

By Larry Taylor, Northumbria University, Newcastle We speak so effortlessly that most of us never think about it. But psychologists and neuroscientists are captivated by the human capacity to communicate with language. By the time a child can tie his or her shoes, enough words and rules have been mastered to allow the expression of […]<\/p>\n","protected":false},"author":40,"featured_media":5492,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10,36,38],"tags":[],"_links":{"self":[{"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/posts\/3042"}],"collection":[{"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/users\/40"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/comments?post=3042"}],"version-history":[{"count":2,"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/posts\/3042\/revisions"}],"predecessor-version":[{"id":5493,"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/posts\/3042\/revisions\/5493"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/media\/5492"}],"wp:attachment":[{"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/media?parent=3042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/categories?post=3042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifeandnews.com\/articles\/wp-json\/wp\/v2\/tags?post=3042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}