There is no "right" one. aparc has fewer but larger ROIs. aparc.a2005s has more but smaller ROIs. The smaller are going to be more specific but probably noisier too doug
On 06/23/2014 04:26 PM, Kristina Kuhlmann wrote:
Dear mailing-list, I’ve got a question concerning the file types of stats tables in qdec. After generating the stats tables there are two files e.g. lh.aparc.a2005s.area.stats and lh.aparc.area.stats. Which one is the right one to work with ( statistical analysis)? How do they differ in characteristics and values? Thanks, best regards, Kristina
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Hi Kristina, sorry for the delay. Each of these stats files represents a different atlas. The aparc.area.stats is from the Desikan-Killiany atlas, the a2005s is from the Destrieux atlas. The DK atlas has larger ROIs (too large for some) and is build from 39 subjects. The Destrieux atlas has many small ROIs and is built from about 12 subjects. Since the DK atlas has larger ROIs, the boundaries are probably going to be more reliable. But if the ROIs are too big, then go to the Destrieux atlas doug
On 06/23/2014 04:26 PM, Kristina Kuhlmann wrote:
Dear mailing-list, I’ve got a question concerning the file types of stats tables in qdec. After generating the stats tables there are two files e.g. lh.aparc.a2005s.area.stats and lh.aparc.area.stats. Which one is the right one to work with ( statistical analysis)? How do they differ in characteristics and values? Thanks, best regards, Kristina
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freesurfer@nmr.mgh.harvard.edu
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Douglas N Greve -
Kristina Kuhlmann