area is the area of the white surface. It is not as clear a concept
as, eg, thickness. Basically, when the surface is registered to the
atlas, it has to be stretched in some places and compressed in others.
The stretching and compression will be different in different subjects
and there may
External Email - Use Caution
Hi,
Hope you are having a wonderful morning!
In QDEC in the Design tab under the measurement parameter, there are a
variety of options (thickness, area, area.pial, volume, sulc, curv,
white.K, white.H, w-g.pct.mgh, intensity.deep, intensity.superficial,
Sorry, we are not supporint QDEC any more. Try using asegstats2table
separately. You can cut and paste the printed asegstats2table command into the
shell
On 10/29/2019 10:05 AM, ?? wrote:
External Email - Use Caution
Hello,
We had a problem when using QDEC for group analysis.
After g
External Email - Use Caution
Hello,
We had a problem when using QDEC for group analysis.
After generating relevant files, I press 'Load Data Tabel' button to load my
file 'qdec.tabel.dat'.
But when I press the 'Generate Stats Data Tables' button, a popup window shows
an error
Greve, Douglas N.,Ph.D.";
Date: Mon, Aug 19, 2019 09:32 PM
To: "freesurfer@nmr.mgh.harvard.edu";
Subject: Re: [Freesurfer] question about qdec
It looks like your SUBJECTS_DIR is set to the wrong place. It should be set to
the folder where ever your subjects (eg, PT1_01) are
It looks like your SUBJECTS_DIR is set to the wrong place. It should be set to
the folder where ever your subjects (eg, PT1_01) are
On 8/19/2019 4:45 AM, 310913949 wrote:
External Email - Use Caution
Hi FS Experts,
I meet some problem when I use QDEC for Group analysis. When
External Email - Use Caution
Hi FS Experts,
I meet some problem when I use QDEC for Group analysis. When I click
Generate Stats Data Tables, it report the errors as follows:
dec/gender.levels
Female
Male
done.
Reading discrete factor levels from config fi
Hi Doug,
Thank you for letting me know.
1) machine being used: Linux localhost.localdomain
3.10.0-229.4.2.el7.x86_64 #1 SMP Wed May 13 10:06:09 UTC 2015 x86_64 x86_64
x86_64 GNU/Linux
2) Freesurfer version: freesurfer-Linux-centos6_x86_64-stable-pub-v5.3.0-HCP
3) Current working directory: /proje
We need more info. Please see
surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
On 12/01/2015 04:43 PM, levi solomyak wrote:
> Dear experts,
>
> I've been attempting to generate a stats data table in qdec, but each
> time I get a "Index Error: list index is out of range" error. This is
> occurrin
Dear experts,
I've been attempting to generate a stats data table in qdec, but each time
I get a "Index Error: list index is out of range" error. This is occurring
when it is trying to parse the .stats file.
I've made sure that the files all line up exactly with the qdec table and
that SUBJECTS_
Hi
I don't know what you mean. The word 'generate' does not appear on that web
page.
Best Martin
Sent via my smartphone, please excuse brevity.
Original message
From: Salil Soman
Date:07/01/2014 9:50 PM (GMT+01:00)
To: free surfer
Subject: [Freesurfer]
When following the longitudinal qdec tutorial (
https://surfer.nmr.mgh.harvard.edu/fswiki/LongitudinalTwoStageModel), does
using the generate Stats Data Tables option extract data for the difference
between time point1 and 2, or something else?
Thank you.
Salil Soman, MD, MS
_
Yes, it is possible. The max p-value is just the p-value for a vertex.
It is the probably of getting the data at that vertex by chance. The
p-value for the cluster is the probably of getting a cluster of the
given size by chance. The two p-values are unrelated.
doug
On 05/07/2014 09:45 AM, La
Dear sir, madam,
I am currently using Freesurfers Qdec and I have a question about the
statistical output: is it possible to have a peak p-value that is larger
(i.e. less significant) than the clusterwise p-value?
My peak p-value (after using a - log10 transformation) = 0.0038, while my
clusterwis
On 01/09/2014 08:00 AM, car...@van-vlodrop.de wrote:
>
> Dear freesurfer community,
>
> I'm trying to do my analysis in qdec right now with the question of
> differences of cortical-thickness between patient and control.
>
> Instead I have a few questions about the different modulations in qdec:
Dear freesurfer community,
I'm trying to do my analysis in qdec right now with the question of differences of cortical-thickness between patient and control.
Instead I have a few questions about the different modulations in qdec:
In 'Design' it's possible to choose from different measurements.
Hi all:
I have three groups of subjects (major depression disorder,slight
depression disorder and contrast),i want to use qdec to obtain the statistical
significant areas containing difference of cortical thickness measurment among
them. But there are some errors appearing when i run the gr
the procedure you followed is correct, although in general you dont need
to run make_average_subject, as the default target subject 'fsaverage'
is fine for most studies. add -target after -qcache
if you did create your own target.
per your questions,
2.2, assuming you imported the group subject
Richard,
Just the input data is smoothed (during the recon-all -qcache stage run
outside of qdec).
The patches that appear in a results display are not 'patches' in any
explicit sense, but just what is displayed due to the default thresholds
that qdec uses. You can adjust those thresholds via th
>From my understanding qdec fits a glm to each vertex. It also smooths the
data.
>From the documentation I do not have a clear understanding of whether qdec
uses smoothed data for input (It appears that is does) or smooths the
coefficients or t-tests after analysis, or both.
Additionally, the res
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