Motivating health behavior change with a storytelling virtual agent

We developed a virtual agent that motivates church-going users to change their health behavior by telling existing cultural narratives that have high relevance with the counseling topic in an engaging way. We evaluated this agent in a between-subjects experiment where participants interacted with an agent that counseled them on nutrition either without a story, with a story but told in a neutral speech style, or with a story using dramatic delivery inspired by church sermons.