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Article

Processing of Rhythm in Speech and Music in Adult Dyslexia

1
SFB1287, Research Focus Cognitive Sciences, Faculty of Human Sciences, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
2
CNRS, (Integrative Neuroscience and Cognition Center, UMR 8002), Université de Paris, 45 rue des Saints-Pères, 75270 Paris, France
*
Author to whom correspondence should be addressed.
Brain Sci. 2020, 10(5), 261; https://doi.org/10.3390/brainsci10050261
Received: 23 September 2019 / Revised: 24 April 2020 / Accepted: 29 April 2020 / Published: 30 April 2020
(This article belongs to the Special Issue Advances in the Neurocognition of Music and Language)
Recent studies have suggested that musical rhythm perception ability can affect the phonological system. The most prevalent causal account for developmental dyslexia is the phonological deficit hypothesis. As rhythm is a subpart of phonology, we hypothesized that reading deficits in dyslexia are associated with rhythm processing in speech and in music. In a rhythmic grouping task, adults with diagnosed dyslexia and age-matched controls listened to speech streams with syllables alternating in intensity, duration, or neither, and indicated whether they perceived a strong-weak or weak-strong rhythm pattern. Additionally, their reading and musical rhythm abilities were measured. Results showed that adults with dyslexia had lower musical rhythm abilities than adults without dyslexia. Moreover, lower musical rhythm ability was associated with lower reading ability in dyslexia. However, speech grouping by adults with dyslexia was not impaired when musical rhythm perception ability was controlled: like adults without dyslexia, they showed consistent preferences. However, rhythmic grouping was predicted by musical rhythm perception ability, irrespective of dyslexia. The results suggest associations among musical rhythm perception ability, speech rhythm perception, and reading ability. This highlights the importance of considering individual variability to better understand dyslexia and raises the possibility that musical rhythm perception ability is a key to phonological and reading acquisition. View Full-Text
Keywords: developmental dyslexia; Iambic/Trochaic Law; rhythmic grouping; musicality; speech perception; rhythm perception developmental dyslexia; Iambic/Trochaic Law; rhythmic grouping; musicality; speech perception; rhythm perception
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MDPI and ACS Style

Boll-Avetisyan, N.; Bhatara, A.; Höhle, B. Processing of Rhythm in Speech and Music in Adult Dyslexia. Brain Sci. 2020, 10, 261. https://doi.org/10.3390/brainsci10050261

AMA Style

Boll-Avetisyan N, Bhatara A, Höhle B. Processing of Rhythm in Speech and Music in Adult Dyslexia. Brain Sciences. 2020; 10(5):261. https://doi.org/10.3390/brainsci10050261

Chicago/Turabian Style

Boll-Avetisyan, Natalie, Anjali Bhatara, and Barbara Höhle. 2020. "Processing of Rhythm in Speech and Music in Adult Dyslexia" Brain Sciences 10, no. 5: 261. https://doi.org/10.3390/brainsci10050261

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