The global population is ageing rapidly. The ageing population faces not only the risk of health-related problems but also the\nchallenge of social isolation and loneliness.While mainstream technology is designed to improve daily life, elderly people�s unique\nneeds are often neglected. These technology designs can be difficult for older adults to learn and use. Tangible user interface (TUI)\ngives physical form to digital information, with the aim of bridging the gap between the digital world and the physical world.Thus,\nit can be a more natural and intuitive interface for the older adults. The objective of this research is to review the existing research\non TUI for enhancing the social interactions of elderly people. Results show that very little research has been published, given that\nthe TUI concept was introduced 20 years ago. Our systematic literature review also resulted in several recommendations for future\nresearch,which includes getting elderly people involved in the process, fromdesigning to evaluating the prototype and investigating\nthe effect of TUI on older adults� social interactions and health.
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