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<div class="moz-cite-prefix">Dear Ioan -Andrei,<br>
<br>
You images are not spatially normalized, i.e. the position in mm
does not correspond to MNI nor to Talairach coordinates.<br>
They at least need a non-trivial trnslation to reach one of those
coordinate ssytem; you probably want to revise the pipeline used
to obtain these images.<br>
Best,<br>
<br>
Bertrand <br>
<br>
On 25/10/2016 20:29, Ioan-Andrei Bârsan wrote:<br>
</div>
<blockquote
cite="mid:CADvQsh8HNoW6qyBHS1Y0D4XndJ5g2Lu2s6f5UxqyRO7GL0NPDA@mail.gmail.com"
type="cite">
<div dir="ltr">Dear members of the Python<span
class="inbox-inbox-Apple-converted-space"> </span>Neuroimaging
list,
<div><br>
</div>
<div>I'm having some difficulties analyzing some MRI data using
nilearn, and I would be very grateful for some pointers.<br>
<div><br>
</div>
<div>I'm using nilearn (nipype==0.12.1). Right now, I'm
working on visualizing some things, and later I plan on
doing age predictions using regression.</div>
<div><br>
</div>
<div>However, when I plot my own data using e.g.
`nilearn.plotting.plot_glass_brain` I notice a strange
offset. I've attached a screenshot showing what happens.
This does not happen when using e.g. data from the sample
OASIS dataset, in which case the brain aligns correctly with
the template.</div>
<div><br>
</div>
<div>Could it be that the images use different coordinate
system conventions? I've read about MNI vs Talairach
coordinates, and how they differ, but I'm not sure whether
this really is the problem I'm having, or how I should
proceed in order to gain more information.</div>
<div><br>
</div>
<div>My .nii files 'headers don't seem to specify what kind of
coordinates are being used. I've attached the contents of a
sample header in case there's something there that I'm
missing.</div>
<div><br>
</div>
<div>I would be very grateful for some advice. Please let me
know if I should provide any other information!</div>
<div><br>
</div>
<div>Kind regards,</div>
<div>Andrei Bârsan</div>
<div><br>
<img src="cid:part1.75778CC3.72B43DC9@inria.fr" alt="Screen
Shot 2016-10-25 at 7.41.55 PM.png" class=""
style="max-width: 100%; opacity: 1;"></div>
</div>
</div>
<br>
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<br>
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</pre>
</blockquote>
<p><br>
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