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<p>Dear Jane,</p>
<p><br>
</p>
<p><br>
</p>
<p>How many negative values are there? This is likely an artifact
due to spline interpolation of the electric field from the
original space to MNI space.</p>
<p><br>
</p>
<p>Best Regards,</p>
<p>Guilherme</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 19/03/2020 06.06, Jane Tan wrote:<br>
</div>
<blockquote type="cite"
cite="mid:SYBPR01MB5243A5C237D372559468F319A5F40@SYBPR01MB5243.ausprd01.prod.outlook.com">
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<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Hi SimNIBS Team,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
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<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
I found some negative values in my <span style="font-family:
Calibri, Arial, Helvetica, sans-serif; background-color:
rgb(255, 255, 255); display: inline !important">nifti volume
for normE in MNI space, and I thought something must have gone
awry during the segmentation process for my head mesh
(created <span style="font-family: Calibri, Arial, Helvetica,
sans-serif; background-color: rgb(255, 255, 255); display:
inline !important">using headreco (with cat) on a MNI152
T1-weighted image)</span>. However, the head mesh looks
okay when I checked it with gmsh. The headreco_log doesn't
seem to indicate any issues either - at least not to my
untrained eye. I do not have access to freeview, and couldn't
do a proper check via headreco.</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important"><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important">I'm also wondering if it might be due to normE not
being very accurate as a result of registration to the MNI
template? </span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important"><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important">Your suggestions would be greatly appreciated. I
am happy to provide my head mesh and segmentation results if
that would be of any help.</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important"><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important">best regards,</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Jane</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important"><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important"><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important"><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span style="font-family: Calibri, Arial, Helvetica, sans-serif;
background-color: rgb(255, 255, 255); display: inline
!important"><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
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<p class="MsoNormal" style="margin-top:0px;
margin-bottom:0px"><span style="" lang="EN-SG">Best
regards,</span></p>
<p class="MsoNormal" style="margin-top:0px;
margin-bottom:0px"><span style="" lang="EN-SG"><br>
</span></p>
<p class="MsoNormal" style="margin-top:0px;
margin-bottom:0px"><span style="" lang="EN-SG">Jane</span></p>
<p class="MsoNormal" style="margin-top:0px;
margin-bottom:0px"><br>
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style="color:rgb(51,51,51)"><br>
</span></span></b></b></p>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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