In this study, the relationship between vocabulary and gesture use is examined in children with autism spectrum disorder (ASD) at different language stages. A total of 72 children with ASD between the ages of 3.0 and 8.2 years participated in the study. Gesture use was assessed by using observation-based procedures, while the number of different…

One of the most popular and widely used parent report instruments for assessing early language acquisition is the MacArthur-Bates Communicative Development Inventories (MB-CDI). This study compares normative data of the Italian Words and Sentences complete form (WS-CF) and short form (WS-SF). The samples included 752 children for the WS-CF and 816…

Current theories of phonological development make contrasting predictions about the role of vocabulary growth and orthographic knowledge in the emergence of segmental phonological representations. Testing these predictions in children is made difficult by the metacognitive nature of tasks used to assess phonological representations. In this study,…

Background: During grammatical treatment of children with developmental language disorder (DLD), it is natural for therapists to focus on the grammatical details of the target language that give the children special difficulty. However, along with the language-specific features of the target (e.g., for English, add -s to verbs in present tense,…

Measurements of infants' quotidian experiences provide critical information about early development. However, the role of sampling methods in providing these measurements is rarely examined. Here we directly compare language input from hour-long video-recordings and daylong audio-recordings within the same group of 44 infants at 6 and 7 months. We…

Weak syllables in Germanic and Romance languages have been reported to be challenging for young children, with syllable omission and/or incomplete reduction persisting till age five. In Mandarin Chinese, neutral tone (T0) involves a weak syllable with varied pitch realizations across (preceding) tonal contexts and short duration. The present study…

An important issue regarding developmental changes in cue weighting is whether children weight the dynamic cue of vowel formant transitions relatively more than do adults, whereas adults depend more on the static cue of the fricative noise level. We investigated this issue in Brazilian Portuguese. Additionally, we inserted the segment to be…

This dissertation explores the effects of frequency on the learning and use of linguistic constructions. The work examines the influence of frequency on form choice in production and meaning inference in comprehension and discusses the effect of each modality on diachronic patterns of change in language. In production, high frequency of a form…

This dissertation examines investment in language learning, especially how that investment looks over the entirety of a learner's target language-related journey. It investigates investment, in terms of positive and negative relationships and experiences, both at one point in time and over time, as well as how investment may be linked to a measure…

In early 2017, Bright from the Start: Georgia Department of Early Care and Learning (DECAL) was awarded $2 million in funding from the governor of Georgia to be used for infant/toddler (I/T) language and literacy activities. DECAL used this funding to create Project LITTLE (Lifting Infants and Toddlers Through Language-rich Environments). Project…

Research shows that educators' perceptions of learning are limited due to a variety of factors which include: a lack of neurobiological- and language acquisition-informed content and information incorporated within teacher preparation programs, educators' learning experiences grounded in familiarity, and confusions between common educational…

By the time they reach early adulthood, English speakers are familiar with the meaning of thousands of words. In the last decades, computational simulations known as distributional semantic models (DSMs) have demonstrated that it is possible to induce word meaning representations solely from word co-occurrence statistics extracted from a large…

This dissertation evaluates the untested assumption that the individuation of events into units matters for word learning, particularly the learning of terms which map onto relational event units (Gentner & Boroditsky, 2001; Maguire et al., 2006). We predicted that 3-year-old children's statistical action segmentation abilities would relate to…

Purpose: Several studies have reported that "useful speech" at 5 years of age predicts outcomes in individuals with autism spectrum disorder (ASD), but this skill has been vaguely defined. This study investigates which specific aspects of expressive language in children with ASD best predict adult language and communication outcomes.…

Cohesive speech has commonly become regarded as one of the essential aspects of language development, especially for pre-schoolers. This study aimed to shed light on the cohesive speech of pre-schoolers (CSP) knowledge base. Three hundred ninety-five publications close related cohesive speech research of 5-6-year-old children were collected from…