Intelligent agents have great potential as facilitators of group conversation among older adults. However, little is known about how to design agents for this purpose and user group, especially in terms of agent embodiment. To this end, we conducted a mixed methods study of older adults' reactions to voice and body in a group conversation facilitation agent. Two agent forms with the same underlying artificial intelligence (AI) and voice system were compared: a humanoid robot and a voice assistant. One preliminary study (total n=24) and one experimental study comparing voice and body morphologies (n=36) were conducted with older adults and an experienced human facilitator. Findings revealed that the artificiality of the agent, regardless of its form, was beneficial for the socially uncomfortable task of conversation facilitation. Even so, talkative personality types had a poorer experience with the "bodied" robot version. Design implications and supplementary reactions, especially to agent voice, are also discussed.
翻译：智力分子作为老年人群体对话的促进者具有巨大的潜力,然而,对于如何设计用于这一目的的代理人和用户群体,特别是在代理化方面,却知之甚少。为此目的,我们对老年人对团体对话促进者中的声音和身体的反应进行了混合方法研究。比较了两种具有相同基础人工智能和声音系统的代理形式:一种人造机器人和一个语音助理。一项初步研究(总计n=24)和一项实验性研究(n=36)是同老年人和有经验的人类调解人比较声音和身体形态的(n=36),研究结果显示,该代理人的人工性质,不管其形式如何,都有利于促进对话这一社会不舒适的任务。即使如此,说话的性格类型在“机器人”的机器人版本方面经验较差。还讨论了设计影响和补充反应,特别是对代理声音的影响。
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