Sensory feedback restoration system overview and study design. (IMAGE)

Beijing Institute of Technology Press Co., Ltd

Sensory feedback restoration system overview and study design.

Caption

(A) The participant with TTA wore his own aesthetic prosthesis with an instrumented insole placed under the foot. (B) Voltage and force signals of the 6 FSRs embedded in the insole and the measured vGRF. (C) The force information was encoded in stimulation patterns (PA, PF, and PW) via a linear modulation. (D) The stimuli were delivered to the participant’s tibial nerve through superficial electrodes placed near the popliteal fossa for the elicitation of referred tactile sensations in the phantom. For the participant with TFA, the working principle of the instrumented prosthesis is the same except for the stimulated nerve (i.e., sciatic rather than the tibial one) and the electrode positioning (i.e., along the femur axis rather than near the popliteal fossa). (E) Overview of the 4-week experimental protocol: Mi, mapping session; SIDi, SID session; Gi, session with G-EO System; Ti, gait analysis; Di, day.

Credit

Andrea Demofonti, Università Campus Bio-Medico di Roma.

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