All vertices in the cluster will have this value. It can be found in the
"summary" file in each contrast. It is the final clusterwise p-value,
ie, the probability of seeing a cluster of the given size by random chance.
doug
On 01/28/2014 05:07 PM, Natasha Haris wrote:
> Where does it appear
QDEC computes it
On 01/28/2014 04:52 PM, Natasha Haris wrote:
> And does the monte carlo precomputed simulation data in the QDEC GUI
> compute this final p-value? Or do I need to use any commands namely
> mri_glmfit?
>
>
> On Tue, Jan 28, 2014 at 1:38 PM, Douglas N Greve
> mailto:gr...@nmr.mg
The cluster-forming threshold is needed to define what the clusters are.
Once you have a cluster forming threshold, you get clusters with a
certain size. Given the size, the FWHM, the cluster forming threshold,
and the search space, a p-value for the cluster is computed.
On 01/28/2014 03:58 PM
So sorry for all the beginner questions. One more.
Then what is the point of running the Monte Carlo simulation with a
cluster-forming threshold of p<0.01 or any other threshold for that matter if I
already know what the clusterwise threshold min should be?
Natasha
> On Jan 28, 2014, at 1
Yes
On 01/28/2014 03:35 PM, Natasha Haris wrote:
> So then how does one determine what should go into the Threshold min
> box? (If it's usually p<0.05 should the clusterwise corrected
> Threshold min be 1.3?)
>
> Natasha
>
>
> On Tue, Jan 28, 2014 at 12:30 PM, Douglas N Greve
> mailto:gr...@n
So then how does one determine what should go into the Threshold min box?
(If it's usually p<0.05 should the clusterwise corrected Threshold min be
1.3?)
Natasha
On Tue, Jan 28, 2014 at 12:30 PM, Douglas N Greve wrote:
>
> On 01/28/2014 03:26 PM, Natasha Haris wrote:
>
>> Oops sorry!
>>
>> I g
On 01/28/2014 03:26 PM, Natasha Haris wrote:
> Oops sorry!
>
> I guess my question then is, after running the monte carlo simulation
> with this cluster-forming threshold (p<0.01), is there a specific
> corrected (clusterwise) threshold I can/am supposed to place in the
> Threshold min box? Or
Oops sorry!
I guess my question then is, after running the monte carlo simulation with
this cluster-forming threshold (p<0.01), is there a specific corrected
(clusterwise) threshold I can/am supposed to place in the Threshold min
box? Or are these two not related in any way.
Natasha
On Tue, Jan
Hi Natasha, please remember to post to the list! When you say a
different set of blobs, do you mean that none of the original blobs are
there? Or do some of the blobs just disappear? Note that the threshold
you use in the simulation is not related to the "Threshold Min". In this
case, the Thre
Yes, when looking at the corrected images, the Threshold Min because the
clusterwise threshold. So if you want to see only clusters that have a
clusterwise p<.05, set that threshold to 1.3
doug
On 01/28/2014 02:24 PM, Natasha Haris wrote:
> The clusterwise simulation runs with a p<0.05 thr
On 01/24/2014 11:54 AM, Natasha Haris wrote:
> Dear Freesurfers,
>
> I am slightly confused about the monte carlo simulation.
>
> First off, I only find a blob when I run the p<0.05 threshold level and don't
> see anything else when I run simulations with p less than that. What does
> this mean?
Dear Freesurfers,
I am slightly confused about the monte carlo simulation.
First off, I only find a blob when I run the p<0.05 threshold level and don't
see anything else when I run simulations with p less than that. What does this
mean?
Additionally, when I click on any question of interest
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