The purpose of this study was to determine the effectiveness of using a mobile socially assistive robot (SAR) that incorporates approach behaviour (APB) for seniors. The participants were 15 residents in a nursing home. The effectiveness of dialogue with participants was compared for two types of SARs: stationary and mobile. Interactions were also examined to determine the factors that led to the success or failure of the dialogue based on the trajectory of the mobile SARs and observations of the participants’ behaviour with the mobile SARs. The results showed that nine of 15 participants (60 %) engaged in dialogue with mobile SARs, which was twice as effective as stationary SARs. Conversely, some participants could not engage in dialogue when using a mobile SAR. In addition, these participants’ The Mini-Mental State Examination (MMSE) scores were low. These participants’ successful dialogues were influenced by the angle at which the mobile SAR approached the participant and the length of time the mobile SAR and the participant were face to face. In this study, it was shown that the introduction of mobile SARs in a nursing home could facilitate communication between SARs and residents and further contribute to the quality of life of residents.

本研究的目的是确定对老年人使用包含接近行为 (APB) 的移动社交辅助机器人 (SAR) 的有效性。参与者是疗养院的 15 名居民。对两种类型的 SAR 与参与者对话的有效性进行了比较：固定的和移动的。还根据移动 SAR 的轨迹和对参与者对移动 SAR 行为的观察，对交互进行了检查，以确定导致对话成功或失败的因素。结果显示，15 名参与者中有 9 人 (60%) 与移动 SAR 进行对话，其效果是固定 SAR 的两倍。相反，一些参与者在使用移动 SAR 时无法进行对话。此外，这些参与者的简易精神状态检查 (MMSE) 分数较低。这些参与者的成功对话受到移动 SAR 接近参与者的角度以及移动 SAR 与参与者面对面的时间长度的影响。本研究表明，在疗养院引入移动 SAR 可以促进 SAR 与居民之间的沟通，并进一步提高居民的生活质量。