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New research shows dyslexia involves difficulty processing language sounds in dyslexic brains,or is being called "phonological impairment." When people recognizevoices, part of what helps make voice recognition accurate isnoticing how people pronounce words differently. But individualswith dyslexia don't experience this familiar language advantage andthis leads to reversing letters and words in both speech andwriting. Phonetics is concerned with the physical properties of speech.Listeners are sensitive to phonetic differences as part of whatmakes a person's voice unique. But individuals with dyslexia havetrouble recognizing these phonetic differences, whether a person isspeaking a familiar language or a foreign one. Tyler Perrachione with the Massachusetts Institute of Technology(MIT) says: "Even though all people who speak a language use the same words,they say those words just a little bit differently from oneanother; what is called 'phonetics' in linguistics. It isremarkable that individuals with dyslexia are no better able toidentify voices speaking a familiar language than a foreign one. Itis also very interesting that the reason for this is that they areless accurate at voice recognition than individuals who don't havedyslexia." For their research study, the MIT scientists trained individualswith and without dyslexia to recognize the voices of peoplespeaking either the listeners' native language of English or anunfamiliar foreign language, Mandarin Chinese. In each language,participants learned to associate five talkers' voices with uniquecartoon avatars and were subsequently tested on their ability tocorrectly identify those voices. The listeners were either typically-developing readers orindividuals who experienced reading difficulties and dyslexiagrowing up. Analyzing research found individuals with dyslexia weresignificantly worse at being able to consistently recognize thevoices of the English speakers. They were about the same aslisteners without dyslexia at recognizing the Chinese voices; bothgroups were very poor at recognizing voices speaking an unfamiliarlanguage. Contemporary theories of dyslexia often propose a "phonologicaldeficit" as the reason some people struggle to translate writtenimages into meaningful language. The idea is that individuals withdyslexia tend to do poorly on tests that ask them to decode wordsusing conventional phonetic rules, thereby resulting in readingdelays because of difficulties connecting language sounds toletters. Perrachione continues: "Our results are the first to explicitly link impairment in readingability to impairment in ecologically processing spoken language.The results suggest that the source of a phonological deficit mightbe in dyslexic individuals' difficulties learning the consistentproperties of speech sounds as spoken by an individual talker. Lotsof research has shown that individuals with dyslexia have moretrouble understanding speech when there is noise in the background.These results suggest that trouble following a specific voice mightbe part of the cause. Teachers and other educators can be sensitiveto this during classroom instruction where noise from otherclassmates might make it disproportionately difficult for childrenwith dyslexia to follow what is going on in a lesson." If further research verifies this trouble noticing consistency, itmight suggest a specific direction for slowing or stopping earlyspeech and language difficulties for young children at risk ofdyslexia. Written by Sy Kraft Copyright: Medical News Today Not to be reproduced without permission of Medical News Today Additional References Citations. We are high quality suppliers, our products such as China Chemical Custom Synthesis , China Active Pharma Ingredient for oversee buyer. To know more, please visits Food Additives Ingredients.
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