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. Author manuscript; available in PMC: 2020 May 20.
Published in final edited form as: IEEE Trans Haptics. 2020 Jan 16;13(1):152–158. doi: 10.1109/TOH.2020.2967366

Fig. 7.

Fig. 7.

Confusion matrix (A) quantifying comparisons between the perceived ridge spacing relation with the ground truth. The average accuracy and standard error across the subjects (B) are reported with the asterisk indicating significance of p<0.001, comparing to chance. ‘# of Ridges’ denotes the stimulation patterns had equal number of ridges/spikes, while ‘Time’ denotes the stimulation patterns lasted the same amount of time.