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(a) RDM 42 points per layer
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(b) MAG with 42 points per layer
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(c) RDM with 162 points per layer
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(d) MAG with 162 points per layer
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(e) RDM with 642 points per layer
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(f) MAG with 642 points per layer
Figure 11: Forward EEG: accuracy comparison of different BEM solvers with three-layer sphere head models. We observe that the symmetric BEM outperforms the other BEM methods in term of precision. The TFEM was run on a mesh with 427,000 vertices, and the results were interpolated to 162 points in (c) and (d) and 642 points in (e) and (f).