基于老年用户认知和运动特征的手持设备触控手势交互研究

Handheld devices such as smartphones have become more and more important in people's life. However, when using such devices, users suffer from the problems of low pointing accuracy and being difficult to search functions. These problems are more serious for elderly users due to the decline in their visual, hearing, motor and cognitive abilities. Touch gestures can serve a solution to address these problems, as they are a high fault-tolerant and fast interactive style. Nevertheless, existing research on mobile touch gestures is focused on younger users; there is a lack of studies on touch gesture interaction with regard to elderly people's cognitive and motor characteristics. Therefore, from the perspective of user memory and motor ability, this project aims to investigate elderly users' performance of learning and inputting gestures, specify a gesture learning curve formula for elderly users, establish an association function to describe the correlation between gesture learning and production, and propose a gesture complexity model which includes features of gesture learning and inputting for elderly users. Based on the research results, this project will complete a touch gesture based memo in mobile phones and test its usability. The outcome of this project is expected to serve guidance on handheld device interface design for elderly users, help to make handheld devices more widespread in the aged community, and have positive effects on the national policy of caring for the elderly with information technology.

手持设备（如智能手机）在人们的生活中起着越来越重要的作用。然而，用户在使用这类设备时存在点击精度低和查找功能难的问题。对于老年用户，由于视听觉、运动以及认知能力的下降，这些问题尤为严重。触控手势作为一种高容错性和快捷的交互方式，可以针对如上问题提供解决方案。但目前手持设备触控手势研究主要面向年轻用户群体；缺乏基于老年用户认知和运动特征的相关研究。因此，本项目从用户记忆表现和运动能力角度出发，拟调查老年用户学习手势、输入手势的表现，明确老年用户手势学习的曲线公式，建立手势学习与手势输入的关联函数，提出包含老年用户手势学习和输入特征的手势复杂度模型。基于研究结果，本项目将实现一个支持触控手势交互的手机备忘录软件并对其进行可用性评估。本项目的研究成果会对面向老年用户的手持设备界面设计起到指导作用，有助于提高手持设备在老年用户群体中的使用普及率，对国家提出的信息化养老政策也会起到积极的作用。

触控手势是手持设备（如智能手机）中的一种重要交互方式。目前手持设备触控手势研究主要面向年轻用户群体，缺乏基于老年用户认知和运动特征的相关研究。由于相对于年轻用户，老年用户的视听觉、运动以及认知能力的具有所下降，因为针对年轻用户的研究成果不能直接应用于老年用户。因此，本项目从老年用户记忆表现和运动能力角度出发，调查了老年用户学习手势、输入手势的表现，明确了老年用户手势学习的接受程度，分析了多种输入状态下的触控手势输入表现，提出了基于输入特征的手势复杂度模型以及基于用户自定义的多握持方式下的手势设计方案。基于研究结果，本项目实现了一个支持触控手势交互的手机备忘录以及文本选择功能并对其进行可用性评估。本项目的研究成果会对面向老年用户的手持设备界面设计起到积极的指导作用。