Did you visually check the registration of the functional to the structural?

If so, and it looks ok, then you should load the stat map into tkmedit, then load the white surface into tkmedit and see if the surface is actually intersecting the activation.

doug

Joongnam Yang wrote:

Hi all,

I did,

(1) use mri_vol2surf to convert thresh_zstat*.img into thresh_zstat1-lh.w (2) use the *.w file to overlay it onto flattened surface.

The resulting overlaid image (TkSurfer) doesn't show as much activation as that of thresh_zstat*.img (in FEAT). I see only a few tiny dots, not large areas of activation. Coud someone tell me in which direction I should explore it further?

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