. Author manuscript; available in PMC: 2019 Dec 3.

Published in final edited form as: J Neural Eng. 2018 Oct 2;16(1):016026. doi: 10.1088/1741-2552/aae590

Table A1.

Exponential Fit Coefficients for equation (A.1) representing firing threshold versus distance relationships plotted in figures 4(C) and (D).

	Exponential fit coefficients

	Cathode-first		Anode-first

Leading phase	A	k	A	k

	0.252	0.648	0.093	0.585

Balancing pulse, %	A	k	A	k

2.5	0.950	0.637	0.947	1.138
5	0.577	0.543	0.597	0.963
10	0.290	0.554	0.491	0.784
25	0.135	0.612	0.343	0.723
50	0.089	0.668	0.289	0.706
100	0.068	0.713	0.253	0.700