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About

Ryohei Sasama is a researcher in human-robot interaction, focusing on how robots can facilitate social communication and improve daily life. His work centers on adaptive embodied entrainment—the subtle, rhythmic coordination of movement and speech between humans and machines—to create more natural and comfortable interactions. Sasama’s most influential contribution is his 2011 study on motivating elderly people through robot-guided interaction, which has garnered 17 citations. This research demonstrated how robots could encourage physical and social activity among older adults, addressing a critical need in aging societies. He also developed a robotic introducer agent that reduces the stress of first meetings by using embodied entrainment to promote conversation, a concept detailed in two 2009 papers. Sasama’s comparative study of robotic versus on-screen agents (2011) revealed that physical robots elicit stronger user engagement, while his work on healthcare habit encouragement (2011) explored robots as daily wellness coaches. Through these projects, Sasama has advanced the design of socially assistive robots that are not just tools but empathetic companions, paving the way for more intuitive human-machine relationships.