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. Author manuscript; available in PMC: 2021 May 18.
Published in final edited form as: IEEE Trans Neural Syst Rehabil Eng. 2011 Oct 3;19(5):468–476. doi: 10.1109/TNSRE.2011.2166563

Fig. 4.

Fig. 4.

Interaction plot showing mean threshold levels for rats B, D, F for the waveforms in the factorial experiment. Waveforms are grouped by lead phase direction and PAF in ascending order of phase duration. There was no statistical evidence of rat waveform interaction when analyzed under the block-treatment interaction model using rats as the blocking factor (p = 0.52).