Studies On Deaf Children May Help Decode Dyslexia Research
Nittrouer said she began to suspect the role hearing might play in dyslexia study involving children who were born deaf or with profound hearing loss. made a remarkable difference in terms of childrens' ability to hear, but. It is becoming increasingly evident that people with dyslexia in children with dyslexia with children without reading problems. in the October issue of the American Psychological Association journal Neuropsychology. Dyslexia and auditory processing disorder (APD) can impact reading, writing and listening skills in different ways. Use this chart to learn the differences between.
How to test that? Previous studies showed it's easier to recognize voices if they're speaking your own language. So the researchers recruited English-speaking college students and young adults, half with dyslexia, half without. The volunteers watched animated characters - like a clown, a mechanic, a soccer player - speaking either English or Chinese, to get familiar with how they sounded.
Then came the test - to match a voice to its character. The volunteers correctly identified the Chinese speakers only about half the time, regardless of whether they had dyslexia. But when they heard English speakers, people with dyslexia still were right only half the time - while the non-dyslexics did far better, identifying 70 percent of the voices correctly.
The project raise the question of whether voice recognition is a problem in young children, too, says Florida State University psychology professor Richard Wagner, who studies how to identify dyslexia early. Gabrieli says he plans to test 5-year-olds. Murphy and Schochat 7 also investigated the performance of Brazilian children with reading disorders in tests involving auditory temporal processing and phonological awareness.
In that study, 60 children aged between nine and 12 years of age were assessed - 27 in the control group and 33 study group. An adaptation of the "Repetition Test" 8 was developed and applied.
The Repetition Test is composed by four tests of frequency discrimination and ordering, and four tests of duration discrimination and ordering. The results showed that children with reading disabilities presented significant different performance when compared to the control group on tests related to reading, phonological awareness and temporal auditory processing.
However, no correlation between the performance in tests of temporal auditory processing and reading - or even phonological awareness - was observed for both groups. The only observed correlation was the one between reading and phonological awareness test.
Dyslexia a hearing problem? What surprising study says - CBS News
The authors concluded that the existence of some ability that is common for reading and temporal processing is suggested by the lower performance presented by the study group in all auditory processing tests. Furthermore, perhaps the lack of correlation observed could be explained by the fact that reading is not an isolated process, i.
Conclusion This study observed that the group of children with dyslexia showed a statistically poorer performance on the Frequency Pattern test when compared to the control group, suggesting the existence of a relationship between temporal abilities and reading disorder. The group of children with ADHD showed a statistically poorer performance than the control group did on all tests, suggesting the existence of a close relationship between the abilities tested and the Attention Deficit Hyperactivity Disorder.
Borges CF, Schochat E. Fatores de risco para o Transtorno do Processamento Auditivo. Attention deficit hyperactivity disorder. Attention deficit hyperactivity disorder- Research Developments. Nova Science Publishers, Inc.
Comorbid auditory processing disorder in developmental dyslexia. Electrophysiological and behavioral evidence of auditory processing deficits in children with reading disorder. Correlations among reading, phonological processing and auditory temporal processing.
Auditory temporal perception, phonics and reading disabilities in children. Comorbity of central auditory processing disorder and attention-deficit hyperactivity disorder. J Am Acad Audiol. Behavioral characteristics of auditory processing disorder and attention-deficit hyperactivity disorder: Schochat E, Matas CG. Central auditory evaluation in multiple sclerosis: Reliable differential diagnosis and effective management of auditory processing and attention deficit hyperactivity disorders.
Behavioral signs of central auditory processing disorder and attention deficit hyperactivity disorder. Event-related potentials and performance of attention-deficit hyperactivity disorder: Auditory processing in an inter-modal oddball task: Gomes R, Condon M. Central auditory processing ability in children with ADHD with and without learning disabilities.
Journal of Learning Disabilities. Pereira LD, Schochat E.
- How hearing skills could be key to treating dyslexia
- Dyslexia a hearing problem? What surprising study says
Using scalp electrodes, they measured the children's neural responses as they listened to the syllables "ba" and "ga. This deficit in the brain's ability to recall speech sounds "may be a biological marker of dyslexia," she said.
Although many different factors may contribute to dyslexia, the link between a child's reading ability and auditory processing skills appears to be a "highly significant relationship," said Kraus. Reading involves an internal hearing of printed language, Kraus explained.
As children learn to read, they begin to hear the sounds of consonants, vowels and syllables in their heads and make meaningful connections between sounds and information.
Studies On Deaf Children May Help Decode Dyslexia
One in 10 people has dyslexia. The reading disability does not affect intelligence, but it does interfere with the ability to recognize words, understand the meaning of a sentence and make sense of written language.
Children with dyslexia may not make strong sound-to-meaning connections in language because of how their nervous systems are set up, Kraus said. Distinguishing between consonants is particularly difficult for people with dyslexia, she said.
Consonants are spoken quickly, compared to the sound of vowels, yet they carry the meaning of words such as "bat" and "cat," she pointed out.