On 11/15/2012 05:13 PM, Mahinda Yogarajah wrote:
Hi,
Thanks for the reply. I am using the new script and I should correct myself in that my significant volume changes do seem to correspond (although they are not completely identical) to areas where there are significant area differences (I see no significant thickness differences between my groups) - using this kind of vertex wide analysis how does one interpret (biologically) these area differences.
Try looking at
Measuring and comparing brain cortical surface area and other areal quantities,Anderson M. Winkler, et al. NI 2012 http://www.sciencedirect.com/science/article/pii/S1053811912002996#
One other quick question regarding monte Carlo correction in qdec - when I use more stringent p thresholds my significant clusters get smaller as one might expect but I also see a completely new, small cluster in the Cingulum which is not seen at less stringent thresholds - is this kind of behaviour ok ?
That sounds wrong. Can you send a pic?
Thanks.
Mahinda
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