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About

Thierri Callier is a leading researcher in the field of somatosensory neuroprosthetics, whose work centers on restoring the sense of touch to individuals with limb loss or paralysis. His primary contributions lie in understanding how electrical microstimulation of the human somatosensory cortex can generate artificial tactile sensations. In his highly cited 2015 study (47 citations), Callier established the long-term stability of these sensory percepts, demonstrating that the brain’s sensitivity to intracortical microstimulation remains reliable over extended periods—a critical finding for developing durable neural interfaces. His more recent landmark 2023 paper (22 citations) introduced the concept of “tessellation” in artificial touch, showing that precise patterns of microstimulation can create a spatial map of contact points on a prosthetic hand, effectively restoring the ability to perceive where an object touches the skin. This work directly addresses a fundamental feature of natural touch—contact location—which is essential for dexterous manipulation. By bridging basic neuroscience with clinical application, Callier’s research has profound implications for upper-limb neuroprosthetics, offering a pathway toward more intuitive and functional bionic limbs that can truly feel.