The entire shape of subject's cortical surfaces are represented in
".surf.gii" files in the subject folders.  These are available in MNI space
in the MNINonLinear subfolder.  However, different subject's brains have
different shapes, so there usually aren't good anatomical coordinates for
cross-subject results, especially when using MSMAll surface registration
(which improves sensitivity by aligning functional areas, rather than
trying to align brain shape).

We will often display results (using wb_view) on group-average and/or
inflated versions of surfaces, which no longer have anatomical alignment of
their coordinates, but allow things to be shown without being hidden by
cortical folding.  This does not require summarizing fMRI "clusters" as
peak MNI coordinates, which is an inaccurate and oversimplified
representation of fMRI results, and generally implies volume-based
analysis, which generally aligns based only on brain shape.

Tim


On Sat, Jun 16, 2018 at 12:44 PM, <[email protected]> wrote:

> I am trying to get MNI coordinates from HCP fMRI to do brain shape
> visualization based on CAS such as Maple. My study is not about a medical
> issue, but just about visualization of brain activity based on the
> coordinates through a mathematical visualization technique.
>
> Please help me obtain the coordinates. Thank you for your help in advance.
>
>
>
> Best,
>
>
>
> Dongjun Rew, MBA, MS in Stat
>
> PhD candidate in Marketing
>
> Robert C. Vackar College of Business & Entrepreneurship
>
> The University of Texas Rio Grande Valley
>
> Email: [email protected], Phone: 956.665.2590
>
>
>
> _______________________________________________
> HCP-Users mailing list
> [email protected]
> http://lists.humanconnectome.org/mailman/listinfo/hcp-users
>

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