Kaoru Sakatani

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About

Kaoru Sakatani is a pioneering researcher at the intersection of biomedical engineering and human-robot interaction, with a primary focus on neurorehabilitation and brain activity monitoring. His most influential work investigates the neural mechanisms underlying human interaction with therapeutic robots, particularly the seal robot PARO. Using functional near-infrared spectroscopy (fNIRS), Sakatani has demonstrated measurable changes in prefrontal cortex activity during and after engagement with PARO, providing the first neurophysiological evidence for the calming and restorative effects of animal-like robots. His landmark studies, cited over 20 times collectively, compare brain activity when PARO is active versus inactive, revealing that meaningful interaction—not mere physical contact—drives neural responses. These contributions are foundational to the emerging field of robot-assisted therapy, offering objective biomarkers for evaluating assistive technologies in clinical settings. Sakatani’s work bridges neuroscience and robotics, establishing fNIRS as a critical tool for assessing how socially assistive robots impact cognitive and emotional states, with implications for dementia care, autism therapy, and stroke rehabilitation.