The primary source for young children's vocabulary development is parent-child interaction. How parent-child interaction influences vocabulary depends on the child's functioning and the family context. Although research shows the effect of the family context on vocabulary (e.g., reading activities at home, parental education), the role of a child's functioning has received less attention. Children's executive functioning (EF) influences how linguistic input is processed and their social functioning (SF) is important for maintaining social interaction. The aim of the present study was to investigate the additional contributions of children's EF and SF to vocabulary. EF, SF and family contextual factors were measured in 223 Dutch preschool children. EF and SF strongly predicted children's vocabulary in addition to their age, linguistic diversity at home and parental education. EF and SF are therefore important factors to take into account when investigating vocabulary and vocabulary interventions in preschool children.
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The adoption of tablets by young children has raised enthusiasm and concern among speech and language pathologists. This study investigated whether tablet games can be used as effectively as real play objects in vocabulary intervention for children with developmental language disorder (DLD). A randomized, controlled non-inferiority trial was conducted with 70 3-year-old children with DLD. The novel intervention group (n = 35) received 12 10-min scripted intervention sessions with symbolic play using a tablet game spread out over 8–9 weeks. The standard intervention group (n = 35) received the same amount of intervention with real objects using the same vocabulary scripts. In each session, children were exposed to 22 target words. The primary outcome was the number of new target words learned. This was measured using a picture selection task including 22 target words and 22 control words at 3 time intervals: before the intervention, immediately post-intervention, and 5 weeks later. In both intervention groups, the children learned significantly more target words than control words. No significant differences in gains between the two intervention conditions were found. This study provides evidence that vocabulary intervention for toddlers with DLD using a tablet game is equally as effective as an intervention using real objects.
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The expressive vocabulary of children with Down Syndrome (DS) is generally measured with parental reports, such as the Communicative Development Inventory (CDI), given that standardized tests for assessing vocabulary levels may be too difficult for most young children with DS. The CDI provides important insight into the parents’ perception of their child’s vocabulary development. The CDI has proven to be a valid measurement of expressive vocabulary, spoken and gestural, in typical and atypical populations. The validity in children with DS is not well established and signed vocabulary is often not included. This longitudinal study examined the concurrent and predictive validity of the Dutch version of the CDI (N-CDI) in children with DS between 2;0 and 7;6 years old to assess spoken and signed vocabulary. N-CDI scores were assessed on strength of association with mental age,an expressive vocabulary test and spontaneous language analyses in a play setting with parents at T1 and T2 (1.5 years later), and a therapy setting with speech language pathologists at T1. The results of the present study show that the N-CDI is a valuable and valid measurement of expressive vocabulary in children with DS. Strengths and weaknesses of several assessment methods for expressive vocabulary are discussed.
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Smart city technologies, including artificial intelligence and computer vision, promise to bring a higher quality of life and more efficiently managed cities. However, developers, designers, and professionals working in urban management have started to realize that implementing these technologies poses numerous ethical challenges. Policy papers now call for human and public values in tech development, ethics guidelines for trustworthy A.I., and cities for digital rights. In a democratic society, these technologies should be understandable for citizens (transparency) and open for scrutiny and critique (accountability). When implementing such public values in smart city technologies, professionals face numerous knowledge gaps. Public administrators find it difficult to translate abstract values like transparency into concrete specifications to design new services. In the private sector, developers and designers still lack a ‘design vocabulary’ and exemplary projects that can inspire them to respond to transparency and accountability demands. Finally, both the public and private sectors see a need to include the public in the development of smart city technologies but haven’t found the right methods. This proposal aims to help these professionals to develop an integrated, value-based and multi-stakeholder design approach for the ethical implementation of smart city technologies. It does so by setting up a research-through-design trajectory to develop a prototype for an ethical ‘scan car’, as a concrete and urgent example for the deployment of computer vision and algorithmic governance in public space. Three (practical) knowledge gaps will be addressed. With civil servants at municipalities, we will create methods enabling them to translate public values such as transparency into concrete specifications and evaluation criteria. With designers, we will explore methods and patterns to answer these value-based requirements. Finally, we will further develop methods to engage civil society in this processes.
The PhD research by Joris Weijdom studies the impact of collective embodied design techniques in collaborative mixed-reality environments (CMRE) in art- and engineering design practice and education. He aims to stimulate invention and innovation from an early stage of the collective design process.Joris combines theory and practice from the performing arts, human-computer interaction, and engineering to develop CMRE configurations, strategies for its creative implementation, and an embodied immersive learning pedagogy for students and professionals.This lecture was given at the Transmedia Arts seminar of the Mahindra Humanities Center of Harvard University. In this lecture, Joris Weijdom discusses critical concepts, such as embodiment, presence, and immersion, that concern mixed-reality design in the performing arts. He introduces examples from his practice and interdisciplinary projects of other artists.About the researchMultiple research areas now support the idea that embodiment is an underpinning of cognition, suggesting new discovery and learning approaches through full-body engagement with the virtual environment. Furthermore, improvisation and immediate reflection on the experience itself, common creative strategies in artist training and practice, are central when inventing something new. In this research, a new embodied design method, entitled Performative prototyping, has been developed to enable interdisciplinary collective design processes in CMRE’s and offers a vocabulary of multiple perspectives to reflect on its outcomes.Studies also find that engineering education values creativity in design processes, but often disregards the potential of full-body improvisation in generating and refining ideas. Conversely, artists lack the technical know-how to utilize mixed-reality technologies in their design process. This know-how from multiple disciplines is thus combined and explored in this research, connecting concepts and discourse from human-computer interaction and media- and performance studies.This research is a collaboration of the University of Twente, Utrecht University, and HKU University of the Arts Utrecht. This research is partly financed by the Dutch Research Council (NWO).Mixed-reality experiences merge real and virtual environments in which physical and digital spaces, objects, and actors co-exist and interact in real-time. Collaborative Mix-Reality Environments, or CMRE's, enable creative design- and learning processes through full-body interaction with spatial manifestations of mediated ideas and concepts, as live-puppeteered or automated real-time computer-generated content. It employs large-scale projection mapping techniques, motion-capture, augmented- and virtual reality technologies, and networked real-time 3D environments in various inter-connected configurations.This keynote was given at the IETM Plenary meeting in Amsterdam for more than 500 theatre and performing arts professionals. It addresses the following questions in a roller coaster ride of thought-provoking ideas and examples from the world of technology, media, and theatre:What do current developments like Mixed Reality, Transmedia, and The Internet of Things mean for telling stories and creating theatrical experiences? How do we design performances on multiple "stages" and relate to our audiences when they become co-creators?Contactjoris.weijdom@hku.nl / LinkedIn profileThis research is part of the professorship Performative Processes