Why behaviour matters: Studying inter-brain coordination during child-caregiver interaction

Developmental Cognitive Neuroscience, Год журнала: 2024, Номер 67, С. 101384 - 101384

Опубликована: Апрель 23, 2024

Modern technology allows for simultaneous neuroimaging from interacting caregiver-child dyads. Whereas most analyses that examine the coordination between brain regions within an individual do so by measuring changes relative to observed events, studies two brains generally this average intra-brain across entire blocks or experimental conditions. In other words, they not in inter-brain behavioural events. Here, we discuss limitations of approach. First, present data suggesting fine-grained temporal interdependencies behaviour can leave residual artifact data. We show how manifest as both power and (through that) phase synchrony effects EEG affect wavelet transform coherence fNIRS analyses. Second, different possible mechanistic explanations is established maintained. argue non-event-locked approaches struggle differentiate them. Instead, contend which interpersonal dynamics change around events have better potential addressing artifactual confounds teasing apart overlapping mechanisms drive coordination.

Язык: Английский

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The effect of visual speech cues on neural tracking of speech in 10‐month‐old infants

European Journal of Neuroscience, Год журнала: 2024, Номер 60(6), С. 5381 - 5399

Опубликована: Авг. 27, 2024

Abstract While infants' sensitivity to visual speech cues and the benefit of these have been well‐established by behavioural studies, there is little evidence on effect neural processing continuous auditory speech. In this study, we investigated whether cues, such as movements lips, jaw, larynx, facilitate tracking. Ten‐month‐old Dutch‐learning infants watched videos a speaker reciting passages in infant‐directed while electroencephalography (EEG) was recorded. videos, either full face displayed or speaker's mouth jaw were masked with block, obstructing cues. To assess tracking, speech‐brain coherence (SBC) calculated, focusing particularly stress syllabic rates (1–1.75 2.5–3.5 Hz respectively our stimuli). First, overall, SBC compared surrogate data, then, differences two conditions tested at frequencies interest. Our results indicated that show significant tracking both rates. However, no identified between conditions, meaning not modulated further presence Furthermore, demonstrated low‐frequency information related their subsequent vocabulary development 18 months. Overall, study provides necessarily impaired when are fully visible may be potential mechanism successful language acquisition.

Язык: Английский

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Caregiver-infant interactions and child vocabulary

Опубликована: Фев. 7, 2024

The goal of this dissertation is to predict variation in Dutch children’s vocabulary size using data from the large-scale, longitudinal YOUth cohort study. We take a dyadic approach study effects verbal and multimodal behaviours during caregiver-infant interactions on size. This consists four empirical articles. Three key findings emerged: First, while there large interest annotation infant-directed speech, accuracy automatic speech recognition tools has remained largely unexplored. show researchers can use automated facilitate labour-intensive manual process. Second, we that demographic factors explaining vocabulary, such as maternal education, are age-specific task-specific. highlights importance including multiple outcomes across development. Third, robust evidence infants’ gestures vocalisations one hand, caregivers’ contingent responses other influence outcomes, combinations these better predictors. Infants’ pointing relate later receptive showing giving productive – but only when they elicited caregivers free play. In research development, aim describe how infants gather sufficient information language input allows them learn words. Studying nature early creates more complete picture learning environments which brings us closer solving puzzle.

Язык: Английский

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Maturational constraints on tracking of temporal attention in infant language acquisition.

Опубликована: Дек. 8, 2023

Children are active learners: they selectively attend to important information. Rhythmic neural tracking of speech is central language learning. This chapter evaluates recent research showing that oscillations in the infant brain synchronise with rhythm speech, it at different frequencies. process predicts word segmentation and later abilities. We argue rhythmic reflects infants’ attention specific parts signal (e.g., stressed syllables), simultaneously acts as a core mechanism for maximising temporal onto those parts. puts constraint on processing, which maximises uptake relevant information from noisy multimodal environment. hypothesise this be influenced by maturation. end evaluating implications proposal acquisition research, discuss how differences maturation relate variance development autism.

Язык: Английский

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The Effect of Visual Speech Cues on Neural Tracking of Speech in 10-month-old Infants

Опубликована: Дек. 8, 2023

While infants’ sensitivity to visual speech cues and the benefit of these have been well-established by behavioural studies, there is little evidence on effect neural processing continuous auditory speech. In this study, we investigated whether cues, such as movements lips, jaw, larynx, facilitate tracking. Ten-month-old Dutch-learning infants watched videos a speaker reciting passages in infant-directed while EEG was recorded. videos, either full face displayed, or speaker’s mouth jaw were masked with block, obstructing cues. To assess tracking, speech-brain coherence (SBC) calculated, focusing particularly at stress syllabic rates (1-1.75 2.5-3.5 Hz respectively our stimuli). First, overall SBC compared surrogate data, then differences two conditions tested frequencies interest. Our results indicated that show significant tracking both rates. However, no identified between conditions, meaning not modulated further presence Furthermore, demonstrated low-frequency information related their subsequent vocabulary development 18 months. Overall, study provides necessarily impaired when are fully visible, may be potential mechanism successful language acquisition.

Язык: Английский

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