1. Neurodevelopmental oscillatory basis of speech processing in noise
- Author
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Julie Bertels, Maxime Niesen, Florian Destoky, Tim Coolen, Marc Vander Ghinst, Vincent Wens, Antonin Rovai, Nicola Trotta, Martijn Baart, Nicola Molinaro, Xavier De Tiège, Mathieu Bourguignon, and Cognitive Neuropsychology
- Subjects
Cognitive Neuroscience ,Audiovisual speech integration ,ATTENTION ,VISUAL SPEECH ,INFORMATIONAL MASKING ,AUDITORY OBJECTS ,Development ,CHILDRENS COMPREHENSION ,ATTENDED SPEECH ,SHAPED NOISE ,CORTICAL REPRESENTATION ,Speech-in-noise (SiN) perception ,ELECTROPHYSIOLOGICAL EVIDENCE ,SPATIAL NORMALIZATION ,Magnetoencephalography (MEG) ,Cortical tracking of speech (CTS) - Abstract
Humans’ extraordinary ability to understand speech in noise relies on multiple processes that develop with age. Using magnetoencephalography (MEG), we characterize the underlying neuromaturational basis by quantifying how cortical oscillations in 144 participants (aged 5 to 27 years) track phrasal and syllabic structures in connected speech mixed with different types of noise. While the extraction of prosodic cues from clear speech was stable during development, its maintenance in a multi-talker background matured rapidly up to age 9 and was associated with speech comprehension. Furthermore, while the extraction of subtler information provided by syllables matured at age 9, its maintenance in noisy backgrounds progressively matured until adulthood. Altogether, these results highlight distinct behaviorally relevant maturational trajectories for the neuronal signatures of speech perception. In accordance with grain-size proposals, neuromaturational milestones are reached increasingly late for linguistic units of decreasing size, with further delays incurred by noise.TeaserThe neural signature of speech processing in silence and noise features multiple behaviorally relevant developmental milestones
- Published
- 2023