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Kulke L. Coregistration of EEG and eye-tracking in infants and developing populations. Atten Percept Psychophys 2025; 87:228-237. [PMID: 38388851 PMCID: PMC11845560 DOI: 10.3758/s13414-024-02857-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2024] [Indexed: 02/24/2024]
Abstract
Infants cannot be instructed where to look; therefore, infant researchers rely on observation of their participant's gaze to make inferences about their cognitive processes. They therefore started studying infant attention in the real world from early on. Developmental researchers were early adopters of methods combining observations of gaze and behaviour with electroencephalography (EEG) to study attention and other cognitive functions. However, the direct combination of eye-tracking methods and EEG to test infants is still rare, as it includes specific challenges. The current article reviews the development of co-registration research in infancy. It points out specific challenges of co-registration in infant research and suggests ways to overcome them. It ends with recommendations for implementing the co-registration of EEG and eye-tracking in infant research to maximise the benefits of the two measures and their combination and to orient on Open Science principles while doing so. In summary, this work shows that the co-registration of EEG and eye-tracking in infant research can be beneficial to studying natural and real-world behaviour despite its challenges.
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Affiliation(s)
- Louisa Kulke
- Department of Developmental Psychology with Educational Psychology, University of Bremen, Hochschulring 18, 28359, Bremen, Germany.
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2
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Çetinçelik M, Jordan-Barros A, Rowland CF, Snijders TM. The effect of visual speech cues on neural tracking of speech in 10-month-old infants. Eur J Neurosci 2024; 60:5381-5399. [PMID: 39188179 DOI: 10.1111/ejn.16492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 07/04/2024] [Accepted: 07/20/2024] [Indexed: 08/28/2024]
Abstract
While infants' sensitivity to visual speech cues and the benefit of these cues have been well-established by behavioural studies, there is little evidence on the effect of visual speech cues on infants' neural processing of continuous auditory speech. In this study, we investigated whether visual speech cues, such as the movements of the lips, jaw, and larynx, facilitate infants' neural speech tracking. Ten-month-old Dutch-learning infants watched videos of a speaker reciting passages in infant-directed speech while electroencephalography (EEG) was recorded. In the videos, either the full face of the speaker was displayed or the speaker's mouth and jaw were masked with a block, obstructing the visual speech cues. To assess neural tracking, speech-brain coherence (SBC) was calculated, focusing particularly on the stress and syllabic rates (1-1.75 and 2.5-3.5 Hz respectively in our stimuli). First, overall, SBC was compared to surrogate data, and then, differences in SBC in the two conditions were tested at the frequencies of interest. Our results indicated that infants show significant tracking at both stress and syllabic rates. However, no differences were identified between the two conditions, meaning that infants' neural tracking was not modulated further by the presence of visual speech cues. Furthermore, we demonstrated that infants' neural tracking of low-frequency information is related to their subsequent vocabulary development at 18 months. Overall, this study provides evidence that infants' neural tracking of speech is not necessarily impaired when visual speech cues are not fully visible and that neural tracking may be a potential mechanism in successful language acquisition.
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Affiliation(s)
- Melis Çetinçelik
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
- Department of Experimental Psychology, Utrecht University, Utrecht, The Netherlands
- Cognitive Neuropsychology Department, Tilburg University, Tilburg, The Netherlands
| | - Antonia Jordan-Barros
- Centre for Brain and Cognitive Development, Department of Psychological Science, Birkbeck, University of London, London, UK
- Experimental Psychology, University College London, London, UK
| | - Caroline F Rowland
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Tineke M Snijders
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
- Cognitive Neuropsychology Department, Tilburg University, Tilburg, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
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3
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Fantoni M, Federici A, Camponogara I, Handjaras G, Martinelli A, Bednaya E, Ricciardi E, Pavani F, Bottari D. The impact of face masks on face-to-face neural tracking of speech: Auditory and visual obstacles. Heliyon 2024; 10:e34860. [PMID: 39157360 PMCID: PMC11328033 DOI: 10.1016/j.heliyon.2024.e34860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 07/17/2024] [Accepted: 07/17/2024] [Indexed: 08/20/2024] Open
Abstract
Face masks provide fundamental protection against the transmission of respiratory viruses but hamper communication. We estimated auditory and visual obstacles generated by face masks on communication by measuring the neural tracking of speech. To this end, we recorded the EEG while participants were exposed to naturalistic audio-visual speech, embedded in 5-talker noise, in three contexts: (i) no-mask (audio-visual information was fully available), (ii) virtual mask (occluded lips, but intact audio), and (iii) real mask (occluded lips and degraded audio). Neural tracking of lip movements and of the sound envelope of speech was measured through backward modeling, that is, by reconstructing stimulus properties from neural activity. Behaviorally, face masks increased perceived listening difficulty and phonological errors in speech content retrieval. At the neural level, we observed that the occlusion of the mouth abolished lip tracking and dampened neural tracking of the speech envelope at the earliest processing stages. By contrast, degraded acoustic information related to face mask filtering altered neural tracking of speech envelope at later processing stages. Finally, a consistent link emerged between the increment of perceived listening difficulty and the drop in reconstruction performance of speech envelope when attending to a speaker wearing a face mask. Results clearly dissociated the visual and auditory impact of face masks on the neural tracking of speech. While the visual obstacle related to face masks hampered the ability to predict and integrate audio-visual speech, the auditory filter generated by face masks impacted neural processing stages typically associated with auditory selective attention. The link between perceived difficulty and neural tracking drop also provides evidence of the impact of face masks on the metacognitive levels subtending face-to-face communication.
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Affiliation(s)
- M. Fantoni
- MoMiLab, IMT School for Advanced Studies Lucca, Lucca, Italy
| | - A. Federici
- MoMiLab, IMT School for Advanced Studies Lucca, Lucca, Italy
| | | | - G. Handjaras
- MoMiLab, IMT School for Advanced Studies Lucca, Lucca, Italy
| | | | - E. Bednaya
- MoMiLab, IMT School for Advanced Studies Lucca, Lucca, Italy
| | - E. Ricciardi
- MoMiLab, IMT School for Advanced Studies Lucca, Lucca, Italy
| | - F. Pavani
- Centro Interdipartimentale Mente/Cervello–CIMEC, University of Trento, Italy
- Centro Interuniversitario di Ricerca “Cognizione Linguaggio e Sordità”–CIRCLeS, University of Trento, Italy
| | - D. Bottari
- MoMiLab, IMT School for Advanced Studies Lucca, Lucca, Italy
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4
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Çetinçelik M, Rowland CF, Snijders TM. Does the speaker's eye gaze facilitate infants' word segmentation from continuous speech? An ERP study. Dev Sci 2024; 27:e13436. [PMID: 37551932 DOI: 10.1111/desc.13436] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 04/20/2023] [Accepted: 07/04/2023] [Indexed: 08/09/2023]
Abstract
The environment in which infants learn language is multimodal and rich with social cues. Yet, the effects of such cues, such as eye contact, on early speech perception have not been closely examined. This study assessed the role of ostensive speech, signalled through the speaker's eye gaze direction, on infants' word segmentation abilities. A familiarisation-then-test paradigm was used while electroencephalography (EEG) was recorded. Ten-month-old Dutch-learning infants were familiarised with audio-visual stories in which a speaker recited four sentences with one repeated target word. The speaker addressed them either with direct or with averted gaze while speaking. In the test phase following each story, infants heard familiar and novel words presented via audio-only. Infants' familiarity with the words was assessed using event-related potentials (ERPs). As predicted, infants showed a negative-going ERP familiarity effect to the isolated familiarised words relative to the novel words over the left-frontal region of interest during the test phase. While the word familiarity effect did not differ as a function of the speaker's gaze over the left-frontal region of interest, there was also a (not predicted) positive-going early ERP familiarity effect over right fronto-central and central electrodes in the direct gaze condition only. This study provides electrophysiological evidence that infants can segment words from audio-visual speech, regardless of the ostensiveness of the speaker's communication. However, the speaker's gaze direction seems to influence the processing of familiar words. RESEARCH HIGHLIGHTS: We examined 10-month-old infants' ERP word familiarity response using audio-visual stories, in which a speaker addressed infants with direct or averted gaze while speaking. Ten-month-old infants can segment and recognise familiar words from audio-visual speech, indicated by their negative-going ERP response to familiar, relative to novel, words. This negative-going ERP word familiarity effect was present for isolated words over left-frontal electrodes regardless of whether the speaker offered eye contact while speaking. An additional positivity in response to familiar words was observed for direct gaze only, over right fronto-central and central electrodes.
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Affiliation(s)
- Melis Çetinçelik
- Max Planck Institute for Psycholinguistics, Nijmegen, Gelderland, The Netherlands
| | - Caroline F Rowland
- Max Planck Institute for Psycholinguistics, Nijmegen, Gelderland, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Gelderland, The Netherlands
| | - Tineke M Snijders
- Max Planck Institute for Psycholinguistics, Nijmegen, Gelderland, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Gelderland, The Netherlands
- Cognitive Neuropsychology Department, Tilburg University, Tilburg, The Netherlands
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Di Liberto GM, Attaheri A, Cantisani G, Reilly RB, Ní Choisdealbha Á, Rocha S, Brusini P, Goswami U. Emergence of the cortical encoding of phonetic features in the first year of life. Nat Commun 2023; 14:7789. [PMID: 38040720 PMCID: PMC10692113 DOI: 10.1038/s41467-023-43490-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/10/2023] [Indexed: 12/03/2023] Open
Abstract
Even prior to producing their first words, infants are developing a sophisticated speech processing system, with robust word recognition present by 4-6 months of age. These emergent linguistic skills, observed with behavioural investigations, are likely to rely on increasingly sophisticated neural underpinnings. The infant brain is known to robustly track the speech envelope, however previous cortical tracking studies were unable to demonstrate the presence of phonetic feature encoding. Here we utilise temporal response functions computed from electrophysiological responses to nursery rhymes to investigate the cortical encoding of phonetic features in a longitudinal cohort of infants when aged 4, 7 and 11 months, as well as adults. The analyses reveal an increasingly detailed and acoustically invariant phonetic encoding emerging over the first year of life, providing neurophysiological evidence that the pre-verbal human cortex learns phonetic categories. By contrast, we found no credible evidence for age-related increases in cortical tracking of the acoustic spectrogram.
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Affiliation(s)
- Giovanni M Di Liberto
- ADAPT Centre, School of Computer Science and Statistics, Trinity College, The University of Dublin, Dublin, Ireland.
- Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Dublin, Ireland.
- Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, United Kingdom.
| | - Adam Attaheri
- Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, United Kingdom
| | - Giorgia Cantisani
- ADAPT Centre, School of Computer Science and Statistics, Trinity College, The University of Dublin, Dublin, Ireland
- Laboratoire des Systémes Perceptifs, Département d'études Cognitives, École normale supérieure, PSL University, CNRS, 75005, Paris, France
| | - Richard B Reilly
- Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Dublin, Ireland
- School of Engineering, Trinity Centre for Biomedical Engineering, Trinity College, The University of Dublin., Dublin, Ireland
- School of Medicine, Trinity College, The University of Dublin, Dublin, Ireland
| | - Áine Ní Choisdealbha
- Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, United Kingdom
| | - Sinead Rocha
- Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, United Kingdom
| | - Perrine Brusini
- Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, United Kingdom
| | - Usha Goswami
- Centre for Neuroscience in Education, Department of Psychology, University of Cambridge, Cambridge, United Kingdom
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Tan SHJ, Kalashnikova M, Di Liberto GM, Crosse MJ, Burnham D. Seeing a Talking Face Matters: Gaze Behavior and the Auditory-Visual Speech Benefit in Adults' Cortical Tracking of Infant-directed Speech. J Cogn Neurosci 2023; 35:1741-1759. [PMID: 37677057 DOI: 10.1162/jocn_a_02044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
In face-to-face conversations, listeners gather visual speech information from a speaker's talking face that enhances their perception of the incoming auditory speech signal. This auditory-visual (AV) speech benefit is evident even in quiet environments but is stronger in situations that require greater listening effort such as when the speech signal itself deviates from listeners' expectations. One example is infant-directed speech (IDS) presented to adults. IDS has exaggerated acoustic properties that are easily discriminable from adult-directed speech (ADS). Although IDS is a speech register that adults typically use with infants, no previous neurophysiological study has directly examined whether adult listeners process IDS differently from ADS. To address this, the current study simultaneously recorded EEG and eye-tracking data from adult participants as they were presented with auditory-only (AO), visual-only, and AV recordings of IDS and ADS. Eye-tracking data were recorded because looking behavior to the speaker's eyes and mouth modulates the extent of AV speech benefit experienced. Analyses of cortical tracking accuracy revealed that cortical tracking of the speech envelope was significant in AO and AV modalities for IDS and ADS. However, the AV speech benefit [i.e., AV > (A + V)] was only present for IDS trials. Gaze behavior analyses indicated differences in looking behavior during IDS and ADS trials. Surprisingly, looking behavior to the speaker's eyes and mouth was not correlated with cortical tracking accuracy. Additional exploratory analyses indicated that attention to the whole display was negatively correlated with cortical tracking accuracy of AO and visual-only trials in IDS. Our results underscore the nuances involved in the relationship between neurophysiological AV speech benefit and looking behavior.
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Affiliation(s)
- Sok Hui Jessica Tan
- The MARCS Institute of Brain, Behaviour and Development, Western Sydney University, Australia
- Science of Learning in Education Centre, Office of Education Research, National Institute of Education, Nanyang Technological University, Singapore
| | - Marina Kalashnikova
- The Basque Center on Cognition, Brain and Language
- IKERBASQUE, Basque Foundation for Science
| | - Giovanni M Di Liberto
- ADAPT Centre, School of Computer Science and Statistics, Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Ireland
| | - Michael J Crosse
- SEGOTIA, Galway, Ireland
- Trinity Center for Biomedical Engineering, Department of Mechanical, Manufacturing & Biomedical Engineering, Trinity College Dublin, Dublin, Ireland
| | - Denis Burnham
- The MARCS Institute of Brain, Behaviour and Development, Western Sydney University, Australia
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Van Hirtum T, Somers B, Verschueren E, Dieudonné B, Francart T. Delta-band neural envelope tracking predicts speech intelligibility in noise in preschoolers. Hear Res 2023; 434:108785. [PMID: 37172414 DOI: 10.1016/j.heares.2023.108785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/24/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
Behavioral tests are currently the gold standard in measuring speech intelligibility. However, these tests can be difficult to administer in young children due to factors such as motivation, linguistic knowledge and cognitive skills. It has been shown that measures of neural envelope tracking can be used to predict speech intelligibility and overcome these issues. However, its potential as an objective measure for speech intelligibility in noise remains to be investigated in preschool children. Here, we evaluated neural envelope tracking as a function of signal-to-noise ratio (SNR) in 14 5-year-old children. We examined EEG responses to natural, continuous speech presented at different SNRs ranging from -8 (very difficult) to 8 dB SNR (very easy). As expected delta band (0.5-4 Hz) tracking increased with increasing stimulus SNR. However, this increase was not strictly monotonic as neural tracking reached a plateau between 0 and 4 dB SNR, similarly to the behavioral speech intelligibility outcomes. These findings indicate that neural tracking in the delta band remains stable, as long as the acoustical degradation of the speech signal does not reflect significant changes in speech intelligibility. Theta band tracking (4-8 Hz), on the other hand, was found to be drastically reduced and more easily affected by noise in children, making it less reliable as a measure of speech intelligibility. By contrast, neural envelope tracking in the delta band was directly associated with behavioral measures of speech intelligibility. This suggests that neural envelope tracking in the delta band is a valuable tool for evaluating speech-in-noise intelligibility in preschoolers, highlighting its potential as an objective measure of speech in difficult-to-test populations.
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Affiliation(s)
- Tilde Van Hirtum
- KU Leuven - University of Leuven, Department of Neurosciences, Experimental Oto-rhino-laryngology, Herestraat 49 bus 721, Leuven 3000, Belgium.
| | - Ben Somers
- KU Leuven - University of Leuven, Department of Neurosciences, Experimental Oto-rhino-laryngology, Herestraat 49 bus 721, Leuven 3000, Belgium
| | - Eline Verschueren
- KU Leuven - University of Leuven, Department of Neurosciences, Experimental Oto-rhino-laryngology, Herestraat 49 bus 721, Leuven 3000, Belgium
| | - Benjamin Dieudonné
- KU Leuven - University of Leuven, Department of Neurosciences, Experimental Oto-rhino-laryngology, Herestraat 49 bus 721, Leuven 3000, Belgium
| | - Tom Francart
- KU Leuven - University of Leuven, Department of Neurosciences, Experimental Oto-rhino-laryngology, Herestraat 49 bus 721, Leuven 3000, Belgium
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Carta S, Mangiacotti AMA, Valdes AL, Reilly RB, Franco F, Di Liberto GM. The impact of temporal synchronisation imprecision on TRF analyses. J Neurosci Methods 2023; 385:109765. [PMID: 36481165 DOI: 10.1016/j.jneumeth.2022.109765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/17/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Affiliation(s)
- Sara Carta
- ADAPT Centre, Trinity College, The University of Dublin, Ireland; School of Computer Science and Statistics, Trinity College, The University of Dublin, Ireland
| | - Anthony M A Mangiacotti
- Department of Psychology, Middlesex University, London, United Kingdom; FISPPA Department, University of Padova, Padova, Italy
| | - Alejandro Lopez Valdes
- Trinity Centre for Biomedical Engineering, Trinity College, The University of Dublin, Ireland; Global Brain Health Institute, Trinity College, The University of Dublin, Ireland; Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Ireland; School of Engineering, Trinity College, The University of Dublin, Ireland
| | - Richard B Reilly
- Trinity Centre for Biomedical Engineering, Trinity College, The University of Dublin, Ireland; Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Ireland; School of Engineering, Trinity College, The University of Dublin, Ireland; School of Medicine, Trinity College, The University of Dublin, Ireland
| | - Fabia Franco
- Department of Psychology, Middlesex University, London, United Kingdom
| | - Giovanni M Di Liberto
- ADAPT Centre, Trinity College, The University of Dublin, Ireland; School of Computer Science and Statistics, Trinity College, The University of Dublin, Ireland; Trinity College Institute of Neuroscience, Trinity College, The University of Dublin, Ireland.
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Menn KH, Ward EK, Braukmann R, van den Boomen C, Buitelaar J, Hunnius S, Snijders TM. Neural Tracking in Infancy Predicts Language Development in Children With and Without Family History of Autism. NEUROBIOLOGY OF LANGUAGE (CAMBRIDGE, MASS.) 2022; 3:495-514. [PMID: 37216063 PMCID: PMC10158647 DOI: 10.1162/nol_a_00074] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 05/16/2022] [Indexed: 05/24/2023]
Abstract
During speech processing, neural activity in non-autistic adults and infants tracks the speech envelope. Recent research in adults indicates that this neural tracking relates to linguistic knowledge and may be reduced in autism. Such reduced tracking, if present already in infancy, could impede language development. In the current study, we focused on children with a family history of autism, who often show a delay in first language acquisition. We investigated whether differences in tracking of sung nursery rhymes during infancy relate to language development and autism symptoms in childhood. We assessed speech-brain coherence at either 10 or 14 months of age in a total of 22 infants with high likelihood of autism due to family history and 19 infants without family history of autism. We analyzed the relationship between speech-brain coherence in these infants and their vocabulary at 24 months as well as autism symptoms at 36 months. Our results showed significant speech-brain coherence in the 10- and 14-month-old infants. We found no evidence for a relationship between speech-brain coherence and later autism symptoms. Importantly, speech-brain coherence in the stressed syllable rate (1-3 Hz) predicted later vocabulary. Follow-up analyses showed evidence for a relationship between tracking and vocabulary only in 10-month-olds but not in 14-month-olds and indicated possible differences between the likelihood groups. Thus, early tracking of sung nursery rhymes is related to language development in childhood.
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Affiliation(s)
- Katharina H. Menn
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Research Group Language Cycles, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- International Max Planck Research School on Neuroscience of Communication: Function, Structure, and Plasticity, Leipzig, Germany
| | - Emma K. Ward
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Ricarda Braukmann
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Carlijn van den Boomen
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, The Netherlands
| | - Jan Buitelaar
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Sabine Hunnius
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Tineke M. Snijders
- Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
- Cognitive Neuropsychology Department, Tilburg University
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