All Questions
Tagged with statistics fmri
5
questions
3
votes
0
answers
77
views
On performing threshold-free-cluster-enhancement permutation tests--in combination with SPM--and then displaying the results on an MNI template
I'm trying out numerous comparison correction methods on my fMRI dataset and I've encountered multiple papers which used threshold free cluster enhancement, which I'd like to incorporate, but I'm ...
- 131
4
votes
0
answers
53
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Do I report all anatomical regions in a large significant cluster identified in functional connectivity seed-to-voxel analysis?
I am conducting a resting-state functional connectivity seed-to-voxel analysis on the 25 participants from the NYC test-retest dataset using the CONN toolbox with the Posterior Cingulate Cortex of the ...
8
votes
1
answer
2k
views
In fMRI analyses, what is the t-test actually comparing?
In a 1st-level fMRI analysis, it is unclear to me what the t-test performed for each voxel is actually comparing. I've seen this being described in one of two different ways:
The t-test estimates how ...
- 919
3
votes
0
answers
38
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Task-based fMRI dataset with very simple task (e.g. view stripes)
For my Bachelor thesis I need an fMRI dataset in order to look for causal relationships. I want to be able to confirm my work, so the causal relationships should already be known. Therefore, ideally ...
- 31
5
votes
1
answer
56
views
Is it reasonable to have a factor with only two levels in a carry-over design for an fMRI study?
I'm planning a carry-over design for an fMRI study.
To save time, since it seems that I'll need a huge number of trials for my purpose, I'm wondering if it's reasonable to have a matrix 2x3x3, ...
