Daiki Ishimaru

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About

Daiki Ishimaru is a pioneering researcher at the intersection of human-robot interaction, gerontechnology, and conversational AI. His work focuses on leveraging large language models and autonomous conversational agents to address critical psychological challenges in aging populations, particularly loneliness, social isolation, depression, and anxiety. Ishimaru’s most cited paper, “A Week With a Conversational Large Language Model Companion Robot” (2025, 6 citations), demonstrates the feasibility and user experience of deploying LLM-powered robots as long-term companions. His landmark systematic review and meta-analysis (2026, 3 citations) provides the first comprehensive synthesis of evidence on autonomous conversational agents for older adults without cognitive impairment, revealing both the promise and current limitations of these technologies in mitigating loneliness and improving mental health outcomes. This work has been instrumental in shaping the design of future interventions, highlighting the need for longitudinal studies and personalized interaction models. Ishimaru’s contributions are particularly notable for bridging cutting-edge AI with real-world geriatric care, offering scalable, non-pharmacological solutions to one of the most pressing public health challenges of our time.