Brain and speech rhythms in children with developmental language disorders
Contact person
Veronique BOULENGER , Helene GUIRAUD
Scientific framework and objectives
Recent EEG/MEG studies show an alignment of auditory cortical oscillations to speech (syllabic) rhythm (Gross et al., 2013; Peelle et al., 2013). This cortico-linguistic synchronization is thought to reflect the development of predictions on salient acoustic events, allowing optimal sensitivity in the listener and efficient information processing (Peelle & Davis, 2012). Besides, studies in children with developmental language disorders (DLD or previously SLI) suggest the existence of rhythmic processing deficits in these children, either to process acoustic rythmic cues (in non-verbal or verbal stimuli) or in tapping tasks (audio-motor synchronization; Corriveau et al., 2007, 2009). Their performance furthermore predict some of their linguistic skills.
We hypothesize that such difficulties may be related to atypical oscillatory functioning and in particular to a deficit of brain oscillations to align to the speech signal.
In our project (ODYSSEE project and H. Guiraud's PhD, 2013-2017), we aim at testing this hypothesis by:
- examining the processing of speech naturally produced at various syllabic rates in children with DLD/SLI as compared to typically-developing children.
- characterizing, using MEG, the underlying cortical oscillatory dynamics and more specifically brain alignment to syllabic rate.
Financial support
- ANR Programme Jeune Chercheur(se) SHS 2
ODYSSEE : Oscillatory Dynamics of Speech Sensorimotor Ensembles Agence Nationale de la Recherche 2012-2014 - Bourse de mobilité internationale sortante
Oscillations cérébrales et perception de la parole: étude en MEG Programme ERASMUS Mundus - Student Exchange Network in Auditory Cognitive Neuroscience
- Contrat doctoral ASLAN
Brain oscillatory dynamics during speech perception: Typical and atypical language development Labex ASLAN 2013-2016
Publications
- Guiraud, H., Ferragne, E., Bedoin, N., Boulenger, V., 2013, "Adaptation to natural fast speech and time-compressed speech in children", proc. of Interspeech, Lyon, 25-29 août 2013
- Guiraud, H., Hincapié, A.S., Jerbi, K., Boulenger, V., 2016, "Tracking of speech rhythm by cortical oscillations: an MEG study in typically developing children", Society for the Neurobiology of Language, Londres, 17-20 août
- Guiraud, H., Bedoin, N., Krifi-Papoz, S., Herbillon, V., Caillot-Bascoul, A., Gonzalez-Monge, S., Boulenger, V., 2018, "Don't speak too fast! Processing of fast rate speech in children with specific language impairment", PLoS ONE, 13:1
- Guiraud, H., 2017, "Symphonie des oscillations cérébrales lors de la perception de parole : Études comportementale et en magnétoencéphalographie chez les enfants neurotypiques et dysphasiques.", Thèse, Psychologie, Université de Lyon, Université Lumière Lyon 2
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