Abnormal Cortical Processing of the Syllable Rate of Speech in Poor Readers

Abrams, Daniel A.; Nicol, Trent; Zecker, Steven G.; Kraus, Nina

doi:10.1523/jneurosci.5242-08.2009

Cited by 147 publications

(155 citation statements)

References 58 publications

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“…The delayed P100m responses in both cerebral hemispheres supports previous findings that children with dyslexia have atypical brain responses to sounds in both hemispheres when compared to controls (Abrams et al, 2009;Heim, Eulitz and Elbert, 2003;Paul et al, 2006).…”

Section: Discussionsupporting

confidence: 88%

Proceedings of the 9th Conference of the Australasian Society for Cognitive Science

2010

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. Submissions to the conference were reviewed by the Program Committee, who came up with an excellent program of 106 presented papers (in three parallel-track sessions, and including eight submitted symposia) and 20 posters (on show throughout the conference, but highlighted in an enjoyable poster session over drinks on day 2). The full program, along with other information about the conference, remains online at http://www.maccs.mq.edu.au/ascs09. The Australasian Society for Cognitive Science has had an intermittent formal existence, driven mainly by the organization of its string of enjoyable, successful, and highly sociable conferences, which have taken place roughly every two years since the inaugural conference, organized by Peter Slezak, at the University of New South Wales in 1990 (a full list of past conferences is appended below).At the 9 th conference at Macquarie, 163 people attended, including substantial numbers from overseas and interstate, enjoying both the sweet Sydney spring weather and three stimulating days of talks and talk. There was no specific theme, but in addition to specialist research papers within specific sub/disciplines, we encouraged integrative papers which forge connections between sub/disciplines. This integrative ideal also informed invitations to our five excellent keynote speakers: Stephen Crain (Macquarie Centre for Cognitive Science), Jakob Hohwy (Philosophy, Monash University), Jason Mattingley (Psychology & Queensland Brain Institute, University of Queensland), Thomas Metzinger (Philosophy, Johannes Gutenberg-Universität, Mainz; & Institute for Advanced Study, Berlin, Germany, and Barbara Tversky (Psychology, Stanford University; & Columbia University, USA). Versions of three of these keynote talks appear in these proceedings: the papers by Jason Mattingley and Thomas Metzinger have been published elsewhere.Perhaps because the cognitive science community in Australasia is relatively small, compared at least with our counterparts in Asia, Europe, and North America, it retains a thoroughly multidisciplinary atmosphere. The programme confirmed the striking pluralism of the contemporary cognitive sciences, drawing on many distinctive disciplines as researchers on cognition are looking both down into the brain and out into the environment. Most contributions were from psychologists, with sizable numbers from philosophy and linguistics: but many other areas were also represented, including computational neuroscience, neuropsychiatry, clinical psychology, computer science, human-computer interaction, anthropology, education, history and philosophy of science, cognitive archaeology, cognitive ethology, English literature, and cultural history.All those who had presented papers and posters were invited to submit revised versions, following the conference, as full contributions to the published Proceedings. All submissions were reviewed afresh, and revisions were submitted in early 2010: we are delighted to thank our team of reviewers for their hard and effective work.Fifty-seven p...

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Section: Discussionsupporting

confidence: 88%

Proceedings of the 9th Conference of the Australasian Society for Cognitive Science

2010

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“…For the syllable rate, responses were higher over the right than over the left hemisphere, for both the HR and the LR groups. Right asymmetry for syllable rate modulations was previously found in adults (Poelmans et al, 2012a,b), children (Abrams et al, 2009), and newborns (Telkemeyer et al, 2009(Telkemeyer et al, , 2011. Together with the present findings, this suggests that right hemispheric specialization to process syllable rate modulations is already present at a very young age, possibly even from birth.…”

Section: Discussionmentioning

confidence: 59%

“…First, studies assessed asymmetry with different recording techniques (fMRI: e.g., Boemio et al, 2005;MEG: e.g., Hämäläinen et al, 2012;EEG: e.g., Poelmans et al, 2012a). Second, stimulus factors such as stimulus complexity (linguistic: e.g., Abrams et al, 2009;acoustic: e.g., Lehongre et al, 2011) or stimulus presentation manner (unilateral or bilateral stimulus presentation: e.g., Poelmans et al, 2012b) may have influenced hemispheric asymmetry. In a previous study, we investigated neural sensitivity to syllable and phoneme rate modulations in adults with and without dyslexia (Poelmans et al, 2012a,b) with exactly the same stimuli and a very similar recording technique as used in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…However, most of these studies were performed in adults (Lehongre et al, 2011;Hämäläinen et al, 2012;Poelmans et al, 2012a) and school-aged children with dyslexia (Abrams et al, 2009), and little is known about how and when these neural alterations manifest in preschool children, before reading acquisition. Given that neural processing of syllable and phoneme rate modulations strongly relates to phonological awareness (Abrams et may be that altered response patterns to these modulations in prereading children can predict reading problems before they occur.…”

Section: Introductionmentioning

confidence: 99%

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Hemispheric Asymmetry in Auditory Processing of Speech Envelope Modulations in Prereading Children

Vanvooren

Poelmans

Hofmann³

et al. 2014

J. Neurosci.

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The temporal envelope of speech is an important cue contributing to speech intelligibility. Theories about the neural foundations of speech perception postulate that the left and right auditory cortices are functionally specialized in analyzing speech envelope information at different time scales: the right hemisphere is thought to be specialized in processing syllable rate modulations, whereas a bilateral or left hemispheric specialization is assumed for phoneme rate modulations. Recently, it has been found that this functional hemispheric asymmetry is different in individuals with language-related disorders such as dyslexia. Most studies were, however, performed in adults and school-aged children, and only a little is known about how neural auditory processing at these specific rates manifests and develops in very young children before reading acquisition. Yet, studying hemispheric specialization for processing syllable and phoneme rate modulations in preliterate children may reveal early neural markers for dyslexia. In the present study, human cortical evoked potentials to syllable and phoneme rate modulations were measured in 5-year-old children at high and low hereditary risk for dyslexia. The results demonstrate a right hemispheric preference for processing syllable rate modulations and a symmetric pattern for phoneme rate modulations, regardless of hereditary risk for dyslexia. These results suggest that, while hemispheric specialization for processing syllable rate modulations seems to be mature in prereading children, hemispheric specialization for phoneme rate modulation processing may still be developing. These findings could have important implications for the development of phonological and reading skills.

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“…There is agreement on the existence of a primary deficit in developmental dyslexia across languages that involves the neural representation of phonological structures in speech, and this notion has been well documented by several studies (Abrams, Nicol, Zecker, & Kraus, 2009;Bradley & Bryant, 1978;Denckla & Rudel, 1976;Meyler & Breznitz, 2005;Seki, Okada, Koeda, & Sadato, 2004;Wimmer, 1993). However, phonological deficits affect reading in different ways, depending on the orthography children must learn.…”

Section: Introductionmentioning

confidence: 98%

Naming Abilities and Orthographic Recognition during Childhood an Event-Related Brain Potentials Study

Gómez-Velázquez¹,

González-Garrido

Vega-Gutiérrez³

2013

IJPS

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Children with reading disabilities or dyslexia, commonly suffer disturbances in phonological awareness, slow-naming speed, and delayed automatic word recognition. A close relation between naming speed and reading difficulties has been well documented; hence, the former could be a useful early predictor of dyslexia. Reading disabled children usually show orthographic problems, but the neurophysiological basis underlying the detection of orthographic violations is still unclear. In this study, 28 healthy, right-handed, second-grade children were selected from a wider screening study and divided into two groups according to their performance on a rapid-naming test battery: slow-naming (SN) and average-naming (AN). Groups were matched by sex, age and school grade, and participants were asked to perform a visual recognition task that consisted of two stimuli: an easily-named drawing followed by a word that either matched (congruent) or did not match (on semantic or orthographic grounds) the drawing. Subjects were instructed to judge the relationship between each pair of stimuli and then press a key on a keyboard while ERP were being recorded. Behavioral results showed significant differences between groups in terms of the number of correct responses, but only for the orthographic violation condition, as no significant differences were observed in reaction times. In addition, SN showed poorer reading performance compared to AN. ERP were significantly different between the two groups during processing of visual words. Results are interpreted as the expression of the difficulties that SN manifested in generating strong associations between phonological and orthographic word forms.

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Abnormal Cortical Processing of the Syllable Rate of Speech in Poor Readers

Cited by 147 publications

References 58 publications

Proceedings of the 9th Conference of the Australasian Society for Cognitive Science

Proceedings of the 9th Conference of the Australasian Society for Cognitive Science

Hemispheric Asymmetry in Auditory Processing of Speech Envelope Modulations in Prereading Children

Naming Abilities and Orthographic Recognition during Childhood an Event-Related Brain Potentials Study

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