Language Development Disorders

The goal of this clinical trial is to compare word learning outcomes in late talking toddlers who are taught different types of words. The main question it aims to answer is if teaching words that come from categories that children already know (e.g., animals) will aid overall word learning. Children will take part in the Vocabulary Acquisition and Usage for Late Talkers (VAULT) word learning treatment and be taught words from more familiar or less familiar categories to see which group learns more words overall.

The purpose of this study is to evaluate the effectiveness of the AI-based application "HiDongDong" in improving articulation development in children aged 2 to under 14 years with suspected articulation delays. The program provides individualized language training based on a personalized assessment of vulnerable speech sounds. This trial aims to determine whether the digital therapeutic solution can enhance articulation skills and inform future strategies for language rehabilitation in children.

The goal of this observational study is to investigate early neural mechanisms underlying the processing of spoken language, specifically the phenomenon of cortical tracking, and to determine whether these mechanisms can serve as early predictors of later language development outcomes in infants, including both typical and atypical trajectories. The main questions it aims to answer are: * How do infants with and without a familial history of language and learning impairments differ in their neural ability to track speech and non-speech auditory stimuli at an early stage of development (around 8 months of age)? * To what extent do early cortical tracking mechanisms predict later language abilities, including both receptive and expressive skills, measured at approximately 18 months of age? Researchers will compare infants with a familial risk for language and learning impairments (FH+) to infants without such risk (FH-) to determine whether differences in early neural processing of auditory stimuli are associated with later language outcomes. Participants will: * undergo a neurophysiological assessment involving non-invasive electroencephalographic (EEG) recording while being exposed to auditory stimuli, including: speech stimuli (pre-recorded simple stories in Italian, presented in infant-directed speech); non-speech stimuli (musical sounds matched for rhythmic and acoustic properties) * take part in a developmental assessment at approximately 8 months of age, including standardized measures of cognitive and early linguistic abilities * be involved in a follow-up assessment approximately 10 months later (around 18 months of age), during which standardized tests will evaluate language comprehension and production abilities * have additional background information collected, including family history of language and learning disorders and socio-demographic characteristics, to better understand potential risk and protective factors The study follows a longitudinal design and uses non-invasive procedures that do not require active responses from the infant.

Every year, millions of children are diagnosed with neurodevelopmental disabilities. This term covers a wide range of conditions, from genetic syndromes to brain injuries such as cerebral palsy. Children with neurodevelopmental disabilities often struggle in multiple areas, including language development. While standard speech therapy mainly focuses on understanding and producing words, these children may also have difficulties with the social and communicative skills needed for language. The parent-child relationship is especially important for helping kids develop in their early years. This clinical trial aims to find out if an intervention focused on early social and communication skills, and involving parents, can help children with neurodevelopmental disabilities. The study includes children aged 6 months to 5 years. It seeks to answer two key questions: * Does this intervention improve social and communication skills better than standard speech therapy? * Does this intervention affect how parents interact with their child? To find the answers, the study will compare two groups: one group will get the parent-involved intervention that focuses on early communication skills, while the other group will get standard speech therapy. In the first intervention, therapists will guide parents in observing and supporting their child's social and communication behaviors during various activities like playtime and snack time. In contrast, the standard speech therapy will focus on traditional goals, such as improving the child's ability to vocalize, understand, and use words, without involving parents. Both interventions will follow the same schedule-eight weekly sessions, each lasting 45 minutes, over two months. Before and after the interventions, the children and parents will: * Have an assessment of the child's language, social, and communication development. * Participate in a 10-minute video recording of parent-child playtime, which will be used to study parenting behavior.

The goal of this observational study is to assess the effectiveness of a machine-assisted system for early screening of autism. The main questions it aims to answer are: * Does the machine-assisted system including 5 main behavioral paradigms identify toddlers with autism from those with other neurodevelopmental disorders and typical development? * Are there any differences in the early symptoms of autism among toddlers over the whole mainland China? Participants will receive some developmental and social communicational evaluations for clinical diagnoses. They will also receive the behavior evaluations of the machine-assisted system. The above evaluations will be performed just once.

The goal of this clinical trial is to see if providing late talking toddlers who are not responding to the Vocabulary Acquisition and Usage for Late Talkers (VAULT) treatment with a different way of communicating will help them improve their word learning. Participants will start with VAULT word learning treatment. If, in the first few sessions, it looks like they won't respond well, they will be provided with a Big Mack Augmentative and Alternative Communication device (a button that says a word when you press it) to use for their responses. The investigators will see if this modification will help with word learning.

This research study investigates how hand gestures can support language comprehension and communication skills of hearing speaking, non-speaking, and/or minimally verbal individuals with Autism Spectrum Disorders (ASD), who are especially disadvantaged by the lack of accessible services in their rural communities. Individuals with other cognitive profiles, including Developmental Language Disorder (DLD), ADHD, Dyslexia, and others are welcome too. The study uses methods of eye tracking and recording of brain activity to understand how hand gestures adapted from signs from American Sign Language, such as \[cry\], can promote successful understanding of words like "cry". The overarching goal is to help families effectively utilize gestures to support communication with their children.

The goal of this clinical trial is to compare word learning outcomes in late talking toddlers who are taught different types of words. The main question it aims to answer is if teaching words that come from categories that children already know (e.g., animals) will aid overall word learning. Children will take part in the Vocabulary Acquisition and Usage for Late Talkers (VAULT) word learning treatment and be taught words from more familiar or less familiar categories to see which group learns more words overall.

Among the objective non-invasive audiological explorations the distorsion products of otoacoustic emissions (DPOAE) allow to quickly assess the function of the cochlear outer hair cells (without the active participation of the subject). This technique is used in newborn screening. While humans are able to perceive sounds in a frequency range of 20Hz to 20kHz, routine clinical audiological assessment is only concerned with frequencies between 1-4kHz. This obscures the importance of high frequencies (HF) which can be easily assessed by DPOAEs. In young children, the perception of these high frequencies could also play an important role in language acquisition. The main objective of this study is to evaluate the relationship between subtle high-frequency hearing impairment, as assessed by the DPOAE (non-invasive, rapid and simple audiological test), and language delay or difficulties in a pre-, peri- and school-age pediatric population.