Re: [Marsbar-users] Script for extracting raw time courses from all voxels in ROI.

[Fairhall, S. L. <Sco...@un...>]

Hi Tom,

if you replace the last line of your example with the following two:
——
rno = marsbar('get_region', region_name(mY));
Y = region_data(mY, rho);,
——
I think you will get what you are after.

Hope this helps,
Scott

On 26 Oct 2014, at 11:43, Tom alderson <tho...@ho...<mailto:tho...@ho...>> wrote:

Apologies if this has been covered but...

how do I extract raw time courses for all the voxels in a ROI using a script?

All the examples in the FAQ only produce the mean of the data (see below):

roi_files = spm_get(Inf,'*roi.mat', 'Select ROI files');
P = spm_get(Inf,'*.img','Select images');
rois = maroi('load_cell', roi_files);  % make maroi ROI objects
mY = get_marsy(rois{:}, P, 'mean');  % extract data into marsy data object
y = summary_data(mY); % get summary time course(s)

How do I replicate the GUI procedure:

1. Extract ROI data (full options).
2. Select ROI file.
3. Use SPM Design => No.
4. Modality => Other.
5. # Subjects => 1.
6. Select img files.
7. Scaling => Raw data.
8. Grand Mean => 0.

9. Data => Export Data.
10. Extract SAMPLE time courses.
11. Export to text file.

Best regards,

Tom.
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