Cortical responses to tone and phoneme mismatch as a predictor of dyslexia? A systematic review

Volkmer, Susanne; Schulte‐Körne, Gerd

doi:10.1016/j.schres.2017.07.010

Cited by 38 publications

(36 citation statements)

References 98 publications

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“…This latency is well within the established time range of the MMN/MMF ( Kujala et al., 2007 ). An additional broader, smaller response (late MMF) peaked at around 325–370 ms. A similar response, the late MMN, has been reported in children ( Cheour et al., 2001 ; Volkmer and Schulte-Körne, 2018 ), but rarely in adults (around 340–600 ms; Hill et al., 2004 ; Hommet et al., 2009 ; Korpilahti et al., 1995 ; Schulte-Körne et al., 2001 ; Zachau et al., 2005 ). Its functional role is still poorly understood.…”

Section: Discussionsupporting

confidence: 77%

Neuromagnetic speech discrimination responses are associated with reading-related skills in dyslexic and typical readers

Thiede

Parkkonen

Virtala

et al. 2020

Heliyon

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Poor neural speech discrimination has been connected to dyslexia, and may represent phonological processing deficits that are hypothesized to be the main cause for reading impairments. Thus far, neural speech discrimination impairments have rarely been investigated in adult dyslexics, and even less by examining sources of neuromagnetic responses. We compared neuromagnetic speech discrimination in dyslexic and typical readers with mismatch fields (MMF) and determined the associations between MMFs and reading-related skills. We expected weak and atypically lateralized MMFs in dyslexic readers, and positive associations between reading-related skills and MMF strength. MMFs were recorded to a repeating pseudoword / ta-ta / with occasional changes in vowel identity, duration, or syllable frequency from 43 adults, 21 with confirmed dyslexia. Phonetic (vowel and duration) changes elicited left-lateralized MMFs in the auditory cortices. Contrary to our hypothesis, MMF source strengths or lateralization did not differ between groups. However, better verbal working memory was associated with stronger left-hemispheric MMFs to duration changes across groups, and better reading was associated with stronger right-hemispheric late MMFs across speech-sound changes in dyslexic readers. This suggests a link between neural speech processing and reading-related skills, in line with previous work. Furthermore, our findings suggest a right-hemispheric compensatory mechanism for language processing in dyslexia. The results obtained promote the use of MMFs in investigating reading-related brain processes.

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Section: Discussionsupporting

confidence: 77%

Neuromagnetic speech discrimination responses are associated with reading-related skills in dyslexic and typical readers

Thiede

Parkkonen

Virtala

et al. 2020

Heliyon

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“…The MMN is sensitive to language-specific speech sound representations (Näätänen et al, 1997;Kraus et al, 1998;Winkler et al, 1999;Phillips et al, 2000;Näätänen, 2001). Indeed, there is evidence to suggest that the MMN response is deviant in children with known language disabilities in response to tones (Korpilahti and Lang, 1994;Rinker et al, 2007;Ahmmed et al, 2008) and to speech syllables (Kraus et al, 1996;Uwer et al, 2002;Shafer et al, 2005;Volkmer and Schulte-Körne, 2018). Importantly, the MMN has been shown to index a person's ability to behaviorally discriminate between standard and deviant stimuli (Sams et al, 1985;Kraus et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…While no published research has examined underlying perceptual mechanisms implicated in PD, studies involving children with developmental language disorders, reading disorders, and/or childhood apraxia of speech have identified atypical electrophysiological discriminatory responses to speech sounds (Kraus et al, 1996;Uwer et al, 2002;Sharma et al, 2006;Froud and Khamis-Dakwar, 2012;Volkmer and Schulte-Körne, 2018). With 18-25% of children with PD going on to develop reading difficulties or receive a dyslexia diagnosis (Cabbage et al, 2018), one potential deficit that children with PD might share with children with developmental language disorders and reading disabilities is an impairment in phonological processing or phonological representation (Elbro and Jensen, 2005;Boada and Pennington, 2006;Pennington and Bishop, 2009;Cabbage et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Evidence for [Coronal] Underspecification in Typical and Atypical Phonological Development

Cummings

Ogiela

2020

Front. Hum. Neurosci.

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The Featurally Underspecified Lexicon (FUL) theory predicts that [coronal] is the language universal default place of articulation for phonemes. This assumption has been consistently supported with adult behavioral and event-related potential (ERP) data; however, this underspecification claim has not been tested in developmental populations. The purpose of this study was to determine whether children demonstrate [coronal] underspecification patterns similar to those of adults. Two English consonants differing in place of articulation, [labial] /b/ and [coronal] /d/, were presented to 24 children (ages 4–6 years) characterized by either a typically developing phonological system (TD) or a phonological disorder (PD). Two syllables, /bɑ/ and /dɑ/, were presented in an ERP oddball paradigm where both syllables served as the standard and deviant stimulus in opposite stimulus sets. Underspecification was examined with three analyses: traditional mean amplitude measurements, cluster-based permutation tests, and single-trial general linear model (GLM) analyses of single-subject data. Contrary to previous adult findings, children with PD demonstrated a large positive mismatch response (PMR) to /bɑ/ while the children with TD exhibited a negative mismatch response (MMN); significant group differences were not observed in the /dɑ/ responses. Moreover, the /bɑ/ deviant ERP response was significantly larger in the TD children than in the children with PD. At the single-subject level, more children demonstrated mismatch responses to /dɑ/ than to /bɑ/, though some children had a /bɑ/ mismatch response and no /dɑ/ mismatch response. While both groups of children demonstrated similar responses to the underspecified /dɑ/, their neural responses to the more specified /bɑ/ varied. These findings are interpreted within a proposed developmental model of phonological underspecification, wherein children with PD are functioning at a developmentally less mature stage of phonological acquisition than their same-aged TD peers. Thus, phonological underspecification is a phenomenon that likely develops over time with experience and exposure to language.

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“…Critically, the P-MMR is more prominent in children with delayed language development, such as those with a specific language impairment [48, 49], late talkers [50], and infants and children at risk of dyslexia [51, 52]. Ahmmed et al [48] used 1,000-Hz tones with 2, 5, and 10% (i.e., 1,020, 1,050, and 1,100 Hz) deviance at ISIs of 200 or 400 ms.…”

Section: Mmn and Positive Mismatch Responsesmentioning

confidence: 99%

Neural Underpinnings of Early Speech Perception and Emergent Literacy

Lee

2019

Folia Phoniatr Logop

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Mismatch negativity (MMN) is an event-related potential component used to index automatic auditory change detection. Thus, MMN provides an excellent tool to assess the speech sensitivity of infants and children. Although MMN is well established in adults, the polarity and latency of mismatch responses (MMRs) in infants are highly inconsistent across studies. This paper aims to provide a comprehensive review of MMN studies of speech perception in early infancy. In particular, data from a series of MMN studies of Mandarin lexical tone, vowels, and initial consonants will be presented to demonstrate how phonological saliency, size of deviance, and neural maturation modulate MMRs in early infancy. These data suggest that MMN and positive MMRs index different functional characteristics and may provide information on when and how children’s speech perception becomes automatic at different developmental stages. By using MMN to index sensitivity to speech discrimination, dyslexic children usually show reduced or absent MMN, which supports the relationship between phonological sensitivity and literacy. However, children with attention deficit/hyperactivity disorder showed the typical MMN, but attenuated P3a and enhanced late discriminative negativity. Taken together, the MMR characteristics, including amplitude, peak latency, and the transition of polarity, may be used to index the maturation of speech development and for the early identification of children with atypical language development.

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Cortical responses to tone and phoneme mismatch as a predictor of dyslexia? A systematic review

Cited by 38 publications

References 98 publications

Neuromagnetic speech discrimination responses are associated with reading-related skills in dyslexic and typical readers

Neuromagnetic speech discrimination responses are associated with reading-related skills in dyslexic and typical readers

Evidence for [Coronal] Underspecification in Typical and Atypical Phonological Development

Neural Underpinnings of Early Speech Perception and Emergent Literacy

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