I don't know. There is no way for me to answer that. It depends on the
signal-to-noise of each of the modalities. You'll probably have to experiment a
bit
On 6/22/2019 8:08 AM, Matthieu Vanhoutte wrote:
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I effectively smoothed both modalities the same amount.
The question is whether I should or not smooth before calculating
within-subject correlation?
Best,
Matthieu
Le sam. 22 juin 2019 à 02:14, Greve, Douglas N.,Ph.D.
<dgr...@mgh.harvard.edu<mailto:dgr...@mgh.harvard.edu>> a écrit :
I'm not sure that this is a question we can answer. If you do smooth, then you
should smooth both modalities the same amount.
On 6/18/2019 10:12 PM, Matthieu Vanhoutte wrote:
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Dear FS experts,
I would like to compute within-subject correlation between two modalities based
on vertexwise maps in fsaverage space. I wonder whether I have to smooth the
normalized surface-based maps before computing vertexwise within-subject
correlation?
I have noted that smoothing surface maps before computing correlation increases
the output correlation value.
Thanks for your lights.
Best,
Matthieu
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