COVID-19 has modified numerous aspects of children's social environments. Many children are now spoken to through a mask. There is little empirical evidence attesting to the effects of masked language input on language processing. In addition, not much is known about the effects of clear masks (i.e., transparent face shields) versus opaque masks…

Bilingualism is a powerful experiential factor, and its effects have been proposed to extend beyond the linguistic domain by boosting the development of executive functioning skills. Crucially, recent findings suggest that this effect can be detected in bilingual infants before their first birthday indicating that it emerges as a result of early…

Pre-diagnostic intervention for autism spectrum disorder (ASD) allows symptoms to be addressed as they emerge, often between six to 18 months, rather than after the full onset of the disorder. A systematic literature review, spanning the previous six years was conducted in order to provide an updated review looking at the earliest behavior…

This review addresses the question of a possible specificity of motor development of preterm children with no diagnosis of neurological impairment or major cerebral lesion. With that goal, we proceed with a narrative review on the basis of nine studies. All the studies used standardized assessments of motor abilities with a comparison methodology…

Children's ability to recognize object shape is foundational for successful early word learning. However, the prototypical shape of objects may not be easily accessible--take margarita glasses, for instance. The current study examined 304 U.S. children 17- to 42-month-old (152 females) from 2017 to 2020, asking how shape, age, and vocabulary…

Preschoolers born preterm are at an increased risk for adverse neurodevelopmental outcomes; however, the impact of preterm birth on speech development has not been fully investigated. The primary objective of this study was to document the conversational speech production abilities of preschoolers born preterm via speech sample analysis. A…

Very young preverbal children (aged around 12 months) actively engage with their environment, whether at home, on outings, or in early learning centres. Their engagement with their environment can occur in many different ways involving physical and mental activities. In an early learning centre, there are many activities that very young preverbal…

This longitudinal study examined the development of mother-infant objective and reported sleep quality and duration in solo-mother families (i.e., mothers who decided to parent alone) in comparison to two-parent families. We recruited 134 solo mothers and 161 married mothers during pregnancy, most representing the middle to upper socioeconomic…

When teaching infants new actions, parents tend to modify their movements. Infants prefer these infant-directed actions (IDAs) over adult-directed actions and learn well from them. Yet, it remains unclear "how" parents' action modulations capture infants' attention. Typically, making movements larger than usual is thought to draw…

Montessori communities are known for beautiful mealtimes. Even at the Infant & Toddler level, mealtime is a key moment for children to exercise independence and healthy social interactions. Meals and snacks with the youngest Montessori students are an essential component of the work cycle and daily routine. The Practical Life curriculum allows…

Background: Children born with a cleft palate with or without cleft lip (CP ± L) are known to be at risk for speech-language disorders that impact educational and social-emotional growth. It is hypothesized that speech-language intervention delivered before the age of 3 years could decrease the impact of CP ± L on speech-language development.…

Background: To document whether the sociocognitive peculiarities of people with Down Syndrome impact the construction of attachment at different ages, a systematic review of the literature was carried out. Method: This review followed the Preferred Reporting Items for Systematic Reviews and MetaAnalyses, was conducted on three databases: psycINFO,…

This study examined the content validity and preliminary structural validity of the Sensory Integration Infant Routines Questionnaire (SIIRQ), a tool designed to screen for behaviors reflecting possible sensory integration concerns in children aged between 8 and 24 months. This study included two main phases. In phase 1, we examined content…

Vocabulary size is a crucial early indicator of language development, for both monolingual and bilingual children. Assessing vocabulary in bilingual children is complex because they learn words in two languages, and there remains significant controversy about how to best measure their vocabulary size, especially in relation to monolinguals. This…

Children's speech is influenced by the speech they hear, in particular by the parental speech addressed directly to them. The aim of this study was to analyse toddlers' speech with their parents and to investigate the influence of specific characteristics of child-directed speech on child speech in real time during mother-child and father-child…