Hi Anderson,
But is there a way to calculate p values and size of each tracts in
clusters from whole brain analysis and not from specific mask.
Thank you,
Archana
# Hi Archana,
#
# There's one big cluster that involves multiple structures. It doesn't make
# much sense to break down this cluster into sub-clusters (?) and try to
# obtain a p-value for each after randomise has already run. Instead, if
# you'd like to run a test on a given structure, define a mask for that
# structure, and give it to randomise with the option "-m".
#
# All the best,
#
# Anderson
#
#
# On 16 March 2015 at 05:19, Archana Malagi <[log in to unmask]> wrote:
#
#> ---------------------------- Original Message
#> ----------------------------
#> Subject: Re: [FSL] How to extract cluster size and p values
#> From: [log in to unmask]
#> Date: Mon, March 16, 2015 10:31 am
#> To: [log in to unmask]
#> --------------------------------------------------------------------------
#>
#> Hi Rosalia and Eduardo,
#>
#> As discussed, i applied threshold 0.96 , 0.97 while using cluster
#> command
#> and also attached snapshot of tbss results :
#>
#> threshold 0.96
#>
#> Cluster Index Voxels MAX MAX X (vox) MAX Y (vox) MAX Z
#> (vox) COG X
#> (vox) COG Y (vox) COG Z (vox)
#> 1 32483 0.999 70 150 105 84.3 126 94.2
#>
#> and threshold 0.97
#>
#> Cluster Index Voxels MAX MAX X (vox) MAX Y (vox) MAX Z
#> (vox) COG X
#> (vox) COG Y (vox) COG Z (vox)
#> 1 31264 0.999 70 150 105 84.1 126 94.2
#>
#>
#> Results of atlasquery with threshold: 0.96 and 0.97 gives same results.
#>
#>
#> As a result, it gives only one cluster for both the thresholds and most
#> of
#> cluster the lies is in right hemisphere.
#>
#> Thank you,
#>
#> Archana
#>
#
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