3,119 research outputs found

    Directional adposition use in English, Swedish and Finnish

    Get PDF
    Directional adpositions such as to the left of describe where a Figure is in relation to a Ground. English and Swedish directional adpositions refer to the location of a Figure in relation to a Ground, whether both are static or in motion. In contrast, the Finnish directional adpositions edellä (in front of) and jäljessä (behind) solely describe the location of a moving Figure in relation to a moving Ground (Nikanne, 2003). When using directional adpositions, a frame of reference must be assumed for interpreting the meaning of directional adpositions. For example, the meaning of to the left of in English can be based on a relative (speaker or listener based) reference frame or an intrinsic (object based) reference frame (Levinson, 1996). When a Figure and a Ground are both in motion, it is possible for a Figure to be described as being behind or in front of the Ground, even if neither have intrinsic features. As shown by Walker (in preparation), there are good reasons to assume that in the latter case a motion based reference frame is involved. This means that if Finnish speakers would use edellä (in front of) and jäljessä (behind) more frequently in situations where both the Figure and Ground are in motion, a difference in reference frame use between Finnish on one hand and English and Swedish on the other could be expected. We asked native English, Swedish and Finnish speakers’ to select adpositions from a language specific list to describe the location of a Figure relative to a Ground when both were shown to be moving on a computer screen. We were interested in any differences between Finnish, English and Swedish speakers. All languages showed a predominant use of directional spatial adpositions referring to the lexical concepts TO THE LEFT OF, TO THE RIGHT OF, ABOVE and BELOW. There were no differences between the languages in directional adpositions use or reference frame use, including reference frame use based on motion. We conclude that despite differences in the grammars of the languages involved, and potential differences in reference frame system use, the three languages investigated encode Figure location in relation to Ground location in a similar way when both are in motion. Levinson, S. C. (1996). Frames of reference and Molyneux’s question: Crosslingiuistic evidence. In P. Bloom, M.A. Peterson, L. Nadel & M.F. Garrett (Eds.) Language and Space (pp.109-170). Massachusetts: MIT Press. Nikanne, U. (2003). How Finnish postpositions see the axis system. In E. van der Zee & J. Slack (Eds.), Representing direction in language and space. Oxford, UK: Oxford University Press. Walker, C. (in preparation). Motion encoding in language, the use of spatial locatives in a motion context. Unpublished doctoral dissertation, University of Lincoln, Lincoln. United Kingdo

    State of the art of audio- and video based solutions for AAL

    Get PDF
    Working Group 3. Audio- and Video-based AAL ApplicationsIt is a matter of fact that Europe is facing more and more crucial challenges regarding health and social care due to the demographic change and the current economic context. The recent COVID-19 pandemic has stressed this situation even further, thus highlighting the need for taking action. Active and Assisted Living (AAL) technologies come as a viable approach to help facing these challenges, thanks to the high potential they have in enabling remote care and support. Broadly speaking, AAL can be referred to as the use of innovative and advanced Information and Communication Technologies to create supportive, inclusive and empowering applications and environments that enable older, impaired or frail people to live independently and stay active longer in society. AAL capitalizes on the growing pervasiveness and effectiveness of sensing and computing facilities to supply the persons in need with smart assistance, by responding to their necessities of autonomy, independence, comfort, security and safety. The application scenarios addressed by AAL are complex, due to the inherent heterogeneity of the end-user population, their living arrangements, and their physical conditions or impairment. Despite aiming at diverse goals, AAL systems should share some common characteristics. They are designed to provide support in daily life in an invisible, unobtrusive and user-friendly manner. Moreover, they are conceived to be intelligent, to be able to learn and adapt to the requirements and requests of the assisted people, and to synchronise with their specific needs. Nevertheless, to ensure the uptake of AAL in society, potential users must be willing to use AAL applications and to integrate them in their daily environments and lives. In this respect, video- and audio-based AAL applications have several advantages, in terms of unobtrusiveness and information richness. Indeed, cameras and microphones are far less obtrusive with respect to the hindrance other wearable sensors may cause to one’s activities. In addition, a single camera placed in a room can record most of the activities performed in the room, thus replacing many other non-visual sensors. Currently, video-based applications are effective in recognising and monitoring the activities, the movements, and the overall conditions of the assisted individuals as well as to assess their vital parameters (e.g., heart rate, respiratory rate). Similarly, audio sensors have the potential to become one of the most important modalities for interaction with AAL systems, as they can have a large range of sensing, do not require physical presence at a particular location and are physically intangible. Moreover, relevant information about individuals’ activities and health status can derive from processing audio signals (e.g., speech recordings). Nevertheless, as the other side of the coin, cameras and microphones are often perceived as the most intrusive technologies from the viewpoint of the privacy of the monitored individuals. This is due to the richness of the information these technologies convey and the intimate setting where they may be deployed. Solutions able to ensure privacy preservation by context and by design, as well as to ensure high legal and ethical standards are in high demand. After the review of the current state of play and the discussion in GoodBrother, we may claim that the first solutions in this direction are starting to appear in the literature. A multidisciplinary 4 debate among experts and stakeholders is paving the way towards AAL ensuring ergonomics, usability, acceptance and privacy preservation. The DIANA, PAAL, and VisuAAL projects are examples of this fresh approach. This report provides the reader with a review of the most recent advances in audio- and video-based monitoring technologies for AAL. It has been drafted as a collective effort of WG3 to supply an introduction to AAL, its evolution over time and its main functional and technological underpinnings. In this respect, the report contributes to the field with the outline of a new generation of ethical-aware AAL technologies and a proposal for a novel comprehensive taxonomy of AAL systems and applications. Moreover, the report allows non-technical readers to gather an overview of the main components of an AAL system and how these function and interact with the end-users. The report illustrates the state of the art of the most successful AAL applications and functions based on audio and video data, namely (i) lifelogging and self-monitoring, (ii) remote monitoring of vital signs, (iii) emotional state recognition, (iv) food intake monitoring, activity and behaviour recognition, (v) activity and personal assistance, (vi) gesture recognition, (vii) fall detection and prevention, (viii) mobility assessment and frailty recognition, and (ix) cognitive and motor rehabilitation. For these application scenarios, the report illustrates the state of play in terms of scientific advances, available products and research project. The open challenges are also highlighted. The report ends with an overview of the challenges, the hindrances and the opportunities posed by the uptake in real world settings of AAL technologies. In this respect, the report illustrates the current procedural and technological approaches to cope with acceptability, usability and trust in the AAL technology, by surveying strategies and approaches to co-design, to privacy preservation in video and audio data, to transparency and explainability in data processing, and to data transmission and communication. User acceptance and ethical considerations are also debated. Finally, the potentials coming from the silver economy are overviewed.publishedVersio

    Infant Locomotor Skill Development in the Context of Mother-Infant Interactions

    Get PDF
    The acquisition of locomotor skills and transitions within them leads to changes in infants’ exploratory abilities and interactive behaviors, which affects several aspects of parent-infant exchanges. Here, we tracked how the onset of crawling and walking affected both infants’ and mothers’ spatial exploration, interactive behaviors, and use of postures in 10-minute free play sessions held in a laboratory setting. Thirteen infants and their mothers were followed longitudinally with biweekly sessions occurring from before crawling onset until infants had two months walking experience. We focused on two 6-session transition periods centered around the onsets of hands-and-knees crawling and walking. Behavioral data from the free play sessions were used to identify changes in spatial location coordinates, interactive behaviors, and postures within and across sessions. The use of location coordinates allowed us to derive measures of spatial exploration, including distance traveled, speed of travel, dispersion in the room, and distance between the mother and the infant. We related measures of spatial exploration to their interactive behaviors with toys, furniture and each other, their use of, and transitions between, postures, and the infants’ postural stabilization during play as they moved about the room. Results showed that predominantly with the acquisition of hands-and-knees crawling, infants increased their spatial exploration of the room, which was associated with concomitant increases in their interactive behaviors and postural changes. Mothers, on the other hand, showed an increase in spatial displacement in the room, but this increase was not associated with increased interactive behaviors or postural changes. This indicated that mothers’ spatial displacement was more likely driven by monitoring their child, and not active discovery of the room. As infants gained mobility, the distance between infant and mother increased. Mother-infant interactions and explorations therefore reorganized over time as infants gained motor skills

    MRS and Neuropsychological Outcome in Children with Non-accidental TBI

    Get PDF
    Despite the severe and long-term neurological consequences and the prevalence of non-accidental head trauma (NAT) among infants, few empirical studies have specifically examined the neuropsychological consequences in this population of children. The current study examined the relationship between clinical variables, Magnetic Resonance Spectroscopy (1H-MRS), and neuropsychological outcome in this high-risk population of children. Infants and children with a confirmed diagnosis of NAT were recruited by the Division of Pediatric Neurology at Loma Linda University Children’s Hospital and administered a comprehensive follow-up neuropsychological evaluation and neurological exam several months post injury. At the conclusion of the study, there were 13 participants with a mean age of M = 3.62, SD = 1.61. Results revealed several significant correlations between 1H-MRS, clinical variables, and neuropsychological outcome that are consistent with previous findings as well. As such, the current findings suggest that neurometabolite ratios observed at time of injury can potentially play a significant role in understanding possible functional outcomes the caregivers of these children can expect. Global neuropsychological deficits were also identified among children with non-accidental head trauma, suggesting the need for clinical interventions in this high-risk population. Several significant associations between child deficits observed in this population and parental stress were identified, which has significant implications for the child’s recovery trajectory as well

    PREDICT-CP: study protocol of implementation of comprehensive surveillance to predict outcomes for school-aged children with cerebral palsy

    Get PDF
    Objectives: Cerebral palsy (CP) remains the world’s most common childhood physical disability with total annual costs of care and lost well-being of $A3.87b. The PREDICT-CP (NHMRC 1077257 Partnership Project: Comprehensive surveillance to PREDICT outcomes for school age children with CP) study will investigate the influence of brain structure, body composition, dietary intake, oropharyngeal function, habitual physical activity, musculoskeletal development (hip status, bone health) and muscle performance on motor attainment, cognition, executive function, communication, participation, quality of life and related health resource use costs. The PREDICT-CP cohort provides further follow-up at 8–12 years of two overlapping preschool-age cohorts examined from 1.5 to 5 years (NHMRC 465128 motor and brain development; NHMRC 569605 growth, nutrition and physical activity). Methods and analyses: This population-based cohort study undertakes state-wide surveillance of 245 children with CP born in Queensland (birth years 2006–2009). Children will be classified for Gross Motor Function Classification System; Manual Ability Classification System, Communication Function Classification System and Eating and Drinking Ability Classification System. Outcomes include gross motor function, musculoskeletal development (hip displacement, spasticity, muscle contracture), upper limb function, communication difficulties, oropharyngeal dysphagia, dietary intake and body composition, participation, parent-reported and child-reported quality of life and medical and allied health resource use. These detailed phenotypical data will be compared with brain macrostructure and microstructure using 3 Tesla MRI (3T MRI). Relationships between brain lesion severity and outcomes will be analysed using multilevel mixed-effects models. Ethics and dissemination: The PREDICT-CP protocol is a prospectively registered and ethically accepted study protocol. The study combines data at 1.5–5 then 8–12 years of direct clinical assessment to enable prediction of outcomes and healthcare needs essential for tailoring interventions (eg, rehabilitation, orthopaedic surgery and nutritional supplements) and the projected healthcare utilisation

    Crossing a canyon: identifying and remediating service delivery gaps for individuals with cognitive disabilities in rural British Columbia, Canada

    Get PDF
    This paper explores the service delivery gaps for individuals living with cognitive disabilities in rural British Columbia, Canada. It covers the difficulties faced by people living with cognitive disabilities in the rural areas of British Columbia and indicates solutions for a number of identified problems. It goes beyond by providing concrete recommendations on what needs to be done to ensure that every individual living with cognitive disabilities has access to the required care and support from their caregivers and society as a whole. The topic is introduced with a concise statement of the research problem. The researcher consulted several peer-reviewed scholarly sources to obtain relevant information regarding the service delivery gaps for people living with cognitive disabilities. The paper undertakes an extensive literature review which focused on identifying and remediating service delivery gaps for individuals with cognitive disabilities in rural British Columbia, Canada. This research required a multifaceted approach which involved the author’s personal and work experience, as well as extensive review of available peer-reviewed journal publications. The paper makes a number of important recommendations for future research pertaining to individuals living with Cognitive Disabilities both in rural British Columbia, Canada, but also around the world

    Biological Risks and Neurodevelopment in Young North Indian Children

    Get PDF
    Background. Children growing up in poverty face multiple biological and psychosocial risks, some of which are primarily found in low to middle income countries. Unfavourable biological circumstances, such as inadequate nutrition and childhood illnesses put children at risk for compromised development. Early child development is a precursor for later cognitive functioning and may have lasting consequences for academic achievement and lifelong quality of life. There is a need to identify modifiable risk factors for poor development in order to break the vicious cycle of poverty and poor development. Objectives. The objectives of the current thesis are threefold. First, to examine the effect of two recommended daily allowances of vitamin B12 and/or folic acid for six months on neurodevelopment. Second, to identify other relevant risk factors for poor neurodevelopment in young North Indian children; and, finally, to assess the feasibility of the screening tool Ages and Stages Questionnaire 3rd ed. (ASQ-3) administered by field supervisors to collect reliable data on neurodevelopment in this North Indian field setting. Methods. In a randomized double blind trial, children six to 30 months were given vitamin B12 and/or folic acid or placebo daily for six months. At the end of the study, we measured neurodevelopment in 422 children by ASQ-3 administered directly with the child. During the six months study period, we collected data on childhood illnesses bi-weekly. Information regarding socioeconomic status was collected at baseline, and information regarding stimulation and learning opportunities was collected at end study. Applying linear and logistic regression models, we measured the effect of vitamin B12 and/or folic acid on neurodevelopment, and identified other predictors of developmental status. We also assessed the psychometric properties of the ASQ-3 in the current setting. Results. Compared to placebo, children who received both vitamin B12 and folic acid had 0.45 (95% CI 0.19, 0.73) and 0.28 (95% CI 0.02, 0.54) higher SD-units in the domains of gross motor and problem solving functioning, respectively. The effect was highest in selected subgroups consisting of stunted children, those with evidenceof folate and vitamin B12 deficiency and in those who were younger than 24 months at the end of the study. With the exception of a significant improvement in gross motor scores by vitamin B12 alone, supplementation of either vitamin alone had no effect on any of the outcomes measures. In the multiple regression models, we were able to explain 30.6% of the variation in the total ASQ-3 score. Height for age and weight for height z-scores were positively associated with the total ASQ-3 score, while the number of days with diarrhea was negatively correlated. Variables defined as stimulation and learning opportunities explained most of the variation (25.9%). Our results also indicate that it is possible to collect reliable data on neurodevelopment in this field setting using ASQ-3. Conclusion. Vitamin B12 and folate deficiency, stunting and prolonged diarrhea illness may be important modifiable biological risks adverse neurodevelopment in young children in the current setting. Adequate stimulation and responsive care are crucial for healthy development. Interventions targeting young children growing up in poverty in LMIC should integrate various modifiable risk factors including nutrition, hygiene and early child stimulation to maximize developmental potential in children

    Impulsivity and Caregiver Burden after Deep Brain Stimulation for Parkinson’s Disease

    Get PDF

    A Sensing Platform to Monitor Sleep Efficiency

    Get PDF
    Sleep plays a fundamental role in the human life. Sleep research is mainly focused on the understanding of the sleep patterns, stages and duration. An accurate sleep monitoring can detect early signs of sleep deprivation and insomnia consequentially implementing mechanisms for preventing and overcoming these problems. Recently, sleep monitoring has been achieved using wearable technologies, able to analyse also the body movements, but old people can encounter some difficulties in using and maintaining these devices. In this paper, we propose an unobtrusive sensing platform able to analyze body movements, infer sleep duration and awakenings occurred along the night, and evaluating the sleep efficiency index. To prove the feasibility of the suggested method we did a pilot trial in which several healthy users have been involved. The sensors were installed within the bed and, on each day, each user was administered with the Groningen Sleep Quality Scale questionnaire to evaluate the user’s perceived sleep quality. Finally, we show potential correlation between a perceived evaluation with an objective index as the sleep efficiency.</p
    • …
    corecore