Neural processing of amplitude and formant rise time in dyslexia
نویسندگان
چکیده
This study aimed to investigate how children with dyslexia weight amplitude rise time (ART) and formant rise time (FRT) cues in phonetic discrimination. Passive mismatch responses (MMR) were recorded for a/ba/-/wa/contrast in a multiple deviant odd-ball paradigm to identify the neural response to cue weighting in 17 children with dyslexia and 17 age-matched control children. The deviant stimuli had either partial or full ART or FRT cues. The results showed that ART did not generate an MMR in either group, whereas both partial and full FRT cues generated MMR in control children while only full FRT cues generated MMR in children with dyslexia. These findings suggest that children, both controls and those with dyslexia, discriminate speech based on FRT cues and not ART cues. However, control children have greater sensitivity to FRT cues in speech compared to children with dyslexia.
منابع مشابه
Auditory sensory deficits in developmental dyslexia: A longitudinal ERP study
The core difficulty in developmental dyslexia across languages is a "phonological deficit", a specific difficulty with the neural representation of the sound structure of words. Recent data across languages suggest that this phonological deficit arises in part from inefficient auditory processing of the rate of change of the amplitude envelope at syllable onset (inefficient sensory processing o...
متن کاملAmplitude Onsets and Spectral Energy in Perceptual Experience
A temporal sampling framework for developmental dyslexia by Goswami, U. (2011). Trends Cogn. Sci. (Regul. Ed.) 15, 3–10. In a recent review, Usha Goswami outlined a central role for disordered processing of the rise times of acoustic signals in developmental dyslexia. This approach was placed within the context of amplitude modulation spectra in sounds and in neural oscillations, with an emphas...
متن کاملLanguage-universal Sensory Deficits in Developmental Dyslexia: English, Spanish, and Chinese
Studies in sensory neuroscience reveal the critical importance of accurate sensory perception for cognitive development. There is considerable debate concerning the possible sensory correlates of phonological processing, the primary cognitive risk factor for developmental dyslexia. Across languages, children with dyslexia have a specific difficulty with the neural representation of the phonolog...
متن کاملAuditory Processing of Amplitude Envelope Rise Time in Adults Diagnosed With Developmental Dyslexia
Studies of basic (nonspeech) auditory processing in adults thought to have developmental dyslexia have yielded a variety of data. Yet there has been little consensus regarding the explanatory value of auditory processing in accounting for reading difficulties. Recently, however, a number of studies of basic auditory processing in children with developmental dyslexia have suggested that a reduce...
متن کاملRunning Head: REVISITING THE ENIGMA OF MUSICIANS WITH DYSLEXIA
Previous research has suggested a link between musical training and auditory processing skills. Musicians have shown enhanced perception of auditory features critical to both music and speech, suggesting that this link extends beyond basic auditory processing. It remains unclear to what extent musicians who also have dyslexia show these specialized abilities, considering often-observed persiste...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Developmental Cognitive Neuroscience
دوره 19 شماره
صفحات -
تاریخ انتشار 2016