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Intracortical microstimulation of the somatosensory cortex, can allow prosthesis users to have the sensation of feeling tactile sensation. This method is effective in generating tactile sensations perceived as originating from the hand, with the stimulation sites organized according to expected somatotopic principles. These percepts demonstrate naturalistic characteristics, can be evoked at low stimulation amplitudes, mimicking different types of touch, and remain stable over time. This technology may be used to convey information about contact location and pressure which is important for tasks which require dexterity for object manipulation.

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Flesher, S. N., Collinger, J. L., Foldes, S. T., Weiss, J. M., Downey, J. E., Tyler-Kabara, E. C., Bensmaia, S. J., Schwartz, A. B., Boninger, M. L., & Gaunt, R. A. (2016). Intracortical microstimulation of human somatosensory cortex. Science Translational Medicine, 8(361), 361ra141–361ra141. https://doi.org/10.1126/scitranslmed.aaf808354nm