Re: [Freesurfer] Need help finding minimum number of vertices for monte carlo correction

2016-01-06 Thread Tara Miskovich
Great! Thank you for all the help. On Wed, Jan 6, 2016 at 12:38 PM, Douglas N Greve wrote: > Yes. In theory you can compute the number of vertices by dividing by the > average vertex area > > On 01/06/2016 01:34 PM, Tara Miskovich wrote: > > Thank you for the clarification. So even though it is

Re: [Freesurfer] Need help finding minimum number of vertices for monte carlo correction

2016-01-06 Thread Douglas N Greve
Yes. In theory you can compute the number of vertices by dividing by the average vertex area On 01/06/2016 01:34 PM, Tara Miskovich wrote: > Thank you for the clarification. So even though it is a vertex-wise > threshold, there is no minimum amount of vertices, it goes by area? > > Tara > > On W

Re: [Freesurfer] Need help finding minimum number of vertices for monte carlo correction

2016-01-06 Thread Tara Miskovich
Thank you for the clarification. So even though it is a vertex-wise threshold, there is no minimum amount of vertices, it goes by area? Tara On Wed, Jan 6, 2016 at 12:21 PM, Douglas N Greve wrote: > Area in mm^2 > > On 01/06/2016 01:16 PM, Tara Miskovich wrote: > > Thank you so much, this is in

Re: [Freesurfer] Need help finding minimum number of vertices for monte carlo correction

2016-01-06 Thread Douglas N Greve
Area in mm^2 On 01/06/2016 01:16 PM, Tara Miskovich wrote: > Thank you so much, this is incredibly helpful. And just to be clear is > this the minimum area or vertices? > > Tara > > On Wed, Jan 6, 2016 at 12:01 PM, Douglas N Greve > mailto:gr...@nmr.mgh.harvard.edu>> wrote: > > > First, look

Re: [Freesurfer] Need help finding minimum number of vertices for monte carlo correction

2016-01-06 Thread Tara Miskovich
Thank you so much, this is incredibly helpful. And just to be clear is this the minimum area or vertices? Tara On Wed, Jan 6, 2016 at 12:01 PM, Douglas N Greve wrote: > > First, look in the qdec output folder to determine the FWHM in the > fwhm.dat file. Assuming the value is 10, you are lookin

Re: [Freesurfer] Need help finding minimum number of vertices for monte carlo correction

2016-01-06 Thread Douglas N Greve
First, look in the qdec output folder to determine the FWHM in the fwhm.dat file. Assuming the value is 10, you are looking at the left hemisphere, you used a positive tail, and the voxel-wise threshold was 1.3 (p<.05), then you would find the following file $FREESURFER_HOME/average/mult-comp-

[Freesurfer] Need help finding minimum number of vertices for monte carlo correction

2016-01-05 Thread Tara Miskovich
Hello Freesurfer experts, I need help me finding how to get the minimum number of vertices required to pass the cluster-corrected threshold with monte carlo simulations used in qdec for a surface based analysis? This is per a reviewer request, but I cannot find anything on the wiki or in the mail