Results of the calibration procedure to set-up the Sensory Interface using different data sets.

The goal of the calibration procedure is to define the “sensory regions” by partitioning the position space of the controlled device. (A) from left to right: i) a representation of the evoked spike activity, ii) a color-coded scheme of the recorded spike activity, iii) a graphical representation in the 2D domain of the results of the multidimensional scaling of the distance metric for each spike train, iv) the sensory regions obtained using a nearest neighbor algorithm. We tested this procedure also by using three different stimulation intensities (B), a combination of the stimulation electrodes obtained by co-stimulating neighboring electrodes (C) and by combining the co-stimulation with three stimulus intensities (D).