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Allophonic perception of VOT contrasts in Spanish children with dyslexia
Abstract: French National Research Agency; MINECO/FEDER, Grant/Award Number: PSI2015-65848-R and PGC2018-098813-B-C32; JUNTA DE ANDALUCIA/FEDER, Grant/Award Number: P18-RT-1624 ; Introduction Previous studies have evidenced a different mode of speech perception in dyslexia, characterized by the use of allophonic rather than phonemic units. People with dyslexia perceive phonemic features (such as voicing) less accurately than typical readers, but they perceive allophonic features (i.e., language-independent differences between speech sounds) more accurately. Method In this study, we investigated the perception of voicing contrasts in a sample of 204 Spanish children with or without dyslexia. Identification and discrimination data were collected for synthetic sounds varying along three different voice onset time (VOT) continua (ba/pa, de/te, and di/ti). Empirical data will be contrasted with a mathematical model of allophonic perception building up from neural oscillations and auditory temporal processing. Results Children with dyslexia exhibited a general deficit in categorical precision; that is, they discriminated among phonemically contrastive pairs (around 0-ms VOT) less accurately than did chronological age controls, irrespective of the stimulus continuum. Children with dyslexia also exhibited a higher sensitivity in the discrimination of allophonic features (around +/- 30-ms VOT), but only for the stimulus continuum that was based on a nonlexical contrast (ba/pa). Conclusion Fitting the neural network model to the data collected for this continuum suggests that allophonic perception is due to a deficit in "subharmonic coupling" between high-frequency oscillations. Relationships with "temporal sampling framework" theory are discussed. ; French National Research Agency (ANR) ; MINECO/FEDER PSI2015-65848-R PGC2018-098813-B-C32 ; Junta de Andalucia European Commission P18-RT-1624
Keyword: Allophonic perception; Categorical perception; Dyslexia; Spanish; Voice onset time
URL: http://hdl.handle.net/10481/69201
https://doi.org/10.1002/brb3.2194
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2
Allophonic perception of VOT contrasts in Spanish children with dyslexia
In: Brain Behav (2021)
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Remediation of Allophonic Perception and Visual Attention Span in Developmental Dyslexia: A Joint Assay
In: EISSN: 1664-1078 ; Frontiers in Psychology ; https://hal.archives-ouvertes.fr/hal-02489743 ; Frontiers in Psychology, Frontiers, 2019, 10, ⟨10.3389/fpsyg.2019.01502⟩ (2019)
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The effect of a perceptual fading training on the categorical perception of a voicing continuum ...
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Malleability of the French voicing perception after auditory training in young children ...
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Boundary malleability in French voicing perception after auditory training in young children ...
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Apprentissage de contrastes non-natifs: Limites des entraînements statistiques ...
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Malleability of the French voicing perception after auditory training in young children ...
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Boundary malleability in French voicing perception after auditory training in young children ...
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10
Changes in voicing categorical perception in children with SLI: what can auditory training teach us? ...
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The effect of a perceptual fading training on the categorical perception of a voicing continuum ...
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Apprentissage de contrastes non-natifs: Limites des entraînements statistiques ...
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13
Changes in voicing categorical perception in children with SLI: what can auditory training teach us? ...
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14
RapDys (IMPROVE READING WITH BETTER SPEECH PERCEPTION) ...
Collet, Gregory; Serniclaes, Willy. - : figshare, 2019
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RapDys (IMPROVE READING WITH BETTER SPEECH PERCEPTION) ...
Collet, Gregory; Serniclaes, Willy. - : figshare, 2019
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Improvement of the French voicing categorical perception in children with SLI after phonological auditory training ...
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Improvement of the French voicing categorical perception in children with SLI after phonological auditory training ...
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Impact d'un entraînement sur la perception catégorielle du délai d'établissement du voisement : approches comportementale et électrophysiologique ...
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Impact d'un entraînement sur la perception catégorielle du délai d'établissement du voisement : approches comportementale et électrophysiologique ...
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20
Enhanced Sensitivity to Subphonemic Segments in Dyslexia: A New Instance of Allophonic Perception
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