Table 1.

Errors added to the model inputs to evaluate the accuracy of the method. The inputs include a vector of clinically-determined threshold amplitudes for each contact (Vth),the angle of the posterolateral slope of the Vc/Vim border (Ψ), the medial-lateral electrode angle (Φ), and the anterior-posterior electrode angle (θ). Random errors were added to each input, and the distributions from which errors were selected are listed.

Input	Error distribution
Vth	Uniform (−0.5 to 0.5 V)
Ψ	Normal (µ = 0°, σ = 2, 4°)
Φ	Normal (µ = 0°, σ = 2, 4°)
θ	Normal (µ = 0°, σ = 2, 4°)