ArticleProceedings of the National Academy of Sciences of the United States of America2021
Orthogonal neural codes for speech in the infant brain.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Article
- Utilizing functional neuroimaging to study early language development.Developmental cognitive neuroscience · 2025Review
- The Neural Reality of Pitch Chroma in Early Infancy.Developmental science · 2025Article
- Article
- Neural representation of sensorimotor features in language-motor areas during auditory and visual perception.Communications biology · 2025Article
- [Applications and prospects of electroencephalography technology in neurorehabilitation assessment and treatment].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2024Review
- On the ability of standard and brain-constrained deep neural networks to support cognitive superposition: a position paper.Cognitive neurodynamics · 2024Article
- Infant neuroscience: how to measure brain activity in the youngest minds.Trends in neurosciences · 2024Review
- Phonological acquisition depends on the timing of speech sounds: Deconvolution EEG modeling across the first five years.Science advances · 2023Article
- To be and not to be: wide-field Ca2+ imaging reveals neocortical functional segmentation combines stability and flexibility.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- The relationship between frequency content and representational dynamics in the decoding of neurophysiological data.NeuroImage · 2022Article
- The power of rhythms: how steady-state evoked responses reveal early neurocognitive development.NeuroImage · 2022Article
- Sleeping neonates track transitional probabilities in speech but only retain the first syllable of words.Scientific reports · 2022Article
- Neural indicators of articulator-specific sensorimotor influences on infant speech perception.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
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5 authors.
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Abstract
Creating invariant representations from an everchanging speech signal is a major challenge for the human brain. Such an ability is particularly crucial for preverbal infants who must discover the phonological, lexical, and syntactic regularities of an extremely inconsistent signal in order to acquire language. Within the visual domain, an efficient neural solution to overcome variability consists in factorizing the input into a reduced set of orthogonal components. Here, we asked whether a similar decomposition strategy is used in early speech perception. Using a 256-channel electroencephalographic system, we recorded the neural responses of 3-mo-old infants to 120 natural consonant-vowel syllables with varying acoustic and phonetic profiles. Using multivariate pattern analyses, we show that syllables are factorized into distinct and orthogonal neural codes for consonants and vowels. Concerning consonants, we further demonstrate the existence of two stages of processing. A first phase is characterized by orthogonal and context-invariant neural codes for the dimensions of manner and place of articulation. Within the second stage, manner and place codes are integrated to recover the identity of the phoneme. We conclude that, despite the paucity of articulatory motor plans and speech production skills, pre-babbling infants are already equipped with a structured combinatorial code for speech analysis, which might account for the rapid pace of language acquisition during the first year.
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