Dear SPM list,
I am working on longitudinal data using VBM8 toolbox. I have three time points for each of my 11 subjects .
I want to extract the amygdala volume by using ROIs, and I am using the first Eigenvariate but I am not sure to be right by using this following method:
- I choose my contrast
- ROI analysis from saved mask
- p value adjustment to control -> none -> threshold {T or p value } -> 1
- egeinvariate
- VOI definition -> cluster
I read in other comments that in the graphics window, I see the extracted time series from the selected cluster. But what does it exactly mean?
In my command window, I obtain 33 values (3 values for each of my 11 subjects)
But what are these values? Is it a number of voxels or other thing? units??
Am I right by using this methology in order to extract the amygdala volume?
If I am not right how can I do ?
Thanks & regards,
Sarah.
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