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<p class="MsoNormal"><span lang="EN-US">Dear SimNibs community,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I was trying to verify the electric field obtained by an optimization with regular simulations.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For a cortical target and 2 4*4cm patches, the resulting locations and currents were fed into a regular simulation and interpolated to the cortical surface.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The obtained magnitude of the electric field differs by approximately a factor of two and I can’t seem to figure out the reason for that.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In the figure below the optimization and simulation are shown with the Electric field plotted on the same scale.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">It might be a reasoning error somewhere, but if someone could help me with that, I would be grateful.
<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:NL">Sincerely,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:NL"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="color:black;mso-fareast-language:NL">Steven Beumer MSc</span><span lang="NL" style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;mso-fareast-language:NL"><img width="187" height="52" style="width:1.95in;height:.5416in" id="Picture_x0020_15" src="cid:image002.png@01D95C0D.77205C40" alt="TUe-logo-descriptor-line-scarlet-rgb"></span><span style="color:black;mso-fareast-language:NL"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:black;mso-fareast-language:NL">PhD candidate at the Electrical Engineering faculty<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">PS: For some reason, this issue doesn’t show up with small circular electrodes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><img width="477" height="239" style="width:4.9666in;height:2.4916in" id="Picture_x0020_1" src="cid:image001.png@01D95C0B.E3EBD720"></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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