Intracortical microstimulation of the somatosensory cortex evokes tactile sensations, but those of individual electrodes are insufficient for functional tasks. We show that stimulating multiple electrodes with somatotopically matched projected fields improves task performance with bionic hands.
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References
Flesher, S. N. et al. A brain-computer interface that evokes tactile sensations improves robotic arm control. Science 372, 831–836 (2021). A research article that describes the integration of ICMS-based tactile feedback with bionic hands.
Bensmaia, S. J., Tyler, D. J. & Micera, S. Restoration of sensory information via bionic hands. Nat. Biomed. Eng. 7, 443–455 (2023). A review article that describes and compares current approaches to sensory restoration with a focus on bionic limbs.
Pandarinath, C. & Bensmaia, S. J. The science and engineering behind sensitized brain-controlled bionic hands. Physiol. Rev. 102, 551–604 (2022). This review discusses both the motor and sensory elements of brain–computer interfaces and their interactions.
Valle, G. et al. Tactile edges and motion via patterned microstimulation of the human cortex. Preprint at medRxiv https://doi.org/10.1101/2024.05.06.24306627 (2024). A preprint research article that details the ICMS-evoked sensations when groups of discontinuous electrodes are selected.
Callier, T., Suresh, A. K. & Bensmaia, S. J. Neural coding of contact events in somatosensory cortex. Cereb. Cortex 29, 4613–4627 (2019). A research article that examines the cortical responses to natural touch in primates using microelectrode arrays.
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This is a summary of: Greenspon, C. M. et al. Evoking stable and precise tactile sensations via multi-electrode intracortical microstimulation of the somatosensory cortex. Nat. Biomed. Eng. https://doi.org/10.1038/s41551-024-01299-z (2024).
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Moving beyond single-electrode intracortical-microstimulation-evoked tactile perception. Nat. Biomed. Eng 9, 799–800 (2025). https://doi.org/10.1038/s41551-024-01339-8
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DOI: https://doi.org/10.1038/s41551-024-01339-8
