Hi Marsbar users,

I am trying to use the script:

roi_files = spm_get(Inf,'*roi.mat', 'Select ROI files');
des_path = spm_get(1, 'SPM.mat', 'Select SPM.mat');
rois = maroi('load_cell', roi_files); % make maroi ROI objects
des = mardo(des_path);  % make mardo design object
mY = get_marsy(rois{:}, des, 'mean'); % extract data into marsy data object
y  = summary_data(mY);  % get summary time course(s)

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When I do so I select an ROI from the ROI's that go with MarsBar (left amygdala in this case) and then select the SPM.mat for the participant I want to look at. When I do so I get the following error, which I know is common:

??? Error using ==> spm_sample_vol
Cant open image file.

Error in ==> maroi.getdata at 103
  data = spm_sample_vol(data_imgs(i),...

Error in ==> maroi.get_marsy at 76
  [y vals vXYZ mat]  = getdata(o, VY);

Error in ==> NarrAmyg at 5
mY = get_marsy(rois{:}, des, 'mean'); % extract data into marsy data object

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I followed the directions in the FAQ and reset the path to the images, but I still get the error.

I am using SPM8 in MatlabR2009. Can anyone suggest a possible fix for my problem?

Best,
Patrick B. Williams