Browsing by Subject "human centered computing"
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Item Identifying the Care Activities that Were Supported by Home Based Technology for Care Partners After the Onset of Cognitive Impairment(2018-01-01) Madjaroff, Galina; Mentis, Helena; Ronch, Judah; Information Systems; Human Centered ComputingDue to the rising prevalence rates of dementia and a newly acknowledged state of early dementia, mild neurocognitive disorder (mNCD), there has been a considerable focus on the deployment of technology that supports the needs of older adults with cognitive impairment in their homes. There are several important challenges when addressing the needs of older adults with cognitive impairment and their care partners including the potential for diminishing emotional well-being and loss of autonomy, which could potentially lead to a lower overall quality of life for both care partners (CPs). The motivation of this study was to identify the care activities that were supported by home based technology for care partners after the onset of cognitive impairment. This work was done through gathering multiple sources of qualitative and quantitative data, including mobile application dialogue history logs, pre and post interviews, user feedback groups and home visits. The technology deployed in the home of the care partners was a Voice User Interface Intelligent Agent, specifically the Amazon Echo with its intelligent agent "Alexa.” This technology was selected because it was not built from a traditional care model, yet embodies functions that could be used for all potential forms of care, including those that achieve a higher level of quality of life goals for care partners. The primary attention from the Human Computer Interaction and Gerontology communities has been on technological support of the basic functional needs of older persons, but not much focus has been given to the socio-emotional and psychosocial needs of older people with cognitive impairment and their care partners From this study, we can further our understanding of how to deploy and design technology that shifts the perspective from "cure to care” with a focus on the older person and their lived experience, monitoring wellness, and not just addressing illness. Results and findings indicated that daily care activities of dyads that are seemingly fundamental are actually complex care activities that emerge from using the technology that support the care partners on multiple levels in satisfying multiple needs.Item RadSense: Enabling one hand and no hands interaction for sterile manipulation of medical images using Doppler radar(Elsevier, 2019-11-15) Miller, Elishiah; Li, Zheng; Mentis, Helena; Park, Adrian; Zhu, Ting; Banerjee, NilanjanIn this paper, we show how surgeons can interact with medical images using finger and hand gestures in two situations: one hand-free and no hands-free interaction. We explain how interaction with only one hand or a couple of fingers is beneficial and can help surgeons have continuous interaction, without the need to release their tools and leave the operating table, saving valuable patient time. To this end, we present RadSense, an end-to-end and unobtrusive system that uses Doppler radar-sensing to recognize hand and finger gestures when either one or both hands are busy. Our system permits the following important capabilities: (1) touch-less input for sterile interaction with connected health applications, (2) hand and finger gesture recognition when either one or both hands are busy holding tools, extending multitasking capabilities for health professionals, and (3) mobile and networked, allowing for custom wearable and non-wearable configurations. We evaluated our system in a simulated operating room to manipulate preoperative images using four gestures: circle, double tap, swipe, and finger click. We collected data from five subjects and trained a K-Nearest-Neighbor multi-class classifier using 15-fold cross validation, achieving a 94.5% precision for gesture classification. We conclude that our system performs with high accuracy and is useful in cases where only one hand or a few fingers are free to interact when the hands are busy.