The Impact of Interface Design Element Features on Task Performance in Older Adults: Evidence from Eye-Tracking and EEG Signals

作者：Chengmin Zhou, Fangfang Yuan, Ting Huang, Yurong Zhang, Jake Kaner · 发表于：International Journal of Environmental Research and Public Health · 年份：2022 · DOI：10.3390/ijerph19159251 · 被引用次数：62 · 研究领域：Technology Use by Older Adults、Mind wandering and attention、Consumer Retail Behavior Studies

It is crucial that the interface design of mobile apps be age-appropriate at this stage of global aging, as the new epidemic has resulted in a higher sense of isolation among older persons. In this study, four typical senior social service mobile applications were chosen to give older persons the ability to complete user login duties. The participants were 16 older adults (7 men and 9 women) aged 55 to 76. Both objective and subjective data, including task completion time, gaze length, pupil diameter changes, EEG wave amplitude changes, and subjective sensations of older persons, were gathered using a combination of eye-movement and EEG signal approaches. The program was created to investigate the effects of interface design aspects on older people's task performance, including interface layout, interface color, information density, icon size and position, etc. The study's findings revealed that when the user task completion time and average fixation duration were shorter, the line of sight was more equally distributed, the visual focus was closer to the login button, and the average EEG amplitude of the user changed more, the older adults performed better. The palace layout had a more positive effect on job completion among older individuals when it came to interface layout. In terms of interface color, colored (contrasting) colors should serve to highlight the interface's essential information points while they can be removed. In terms of interface information density, a lo...